======================================
| xx__-> [    8.859603][  T193] ------------[ cut here ]------------
| [    8.859815][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/193
| [    8.860056][  T193] Modules linked in:
| [    8.860471][  T193] Tainted: [W]=WARN
[    8.860572][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.860790][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.860967][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.861443][  T193] RSP: 0018:ffa0000000907a80 EFLAGS: 00010286
[    8.861615][  T193] RAX: 00000000ffffffa6 RBX: ff11000004c47700 RCX: 1ff4000000120f16
[    8.861817][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004c477bc
[    8.862016][  T193] RBP: ff1100000a1ec000 R08: 1fe2200000988ef9 R09: ff1100000f7a8b80
[    8.862214][  T193] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.862413][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a1ec000
[    8.862619][  T193] FS:  00007fb9297fd840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[    8.862860][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.863028][  T193] CR2: 0000000000479648 CR3: 0000000004b59003 CR4: 0000000000771ef0
[    8.863272][  T193] PKRU: 55555554
[    8.863371][  T193] Call Trace:
[    8.863473][  T193]  <TASK>
[    8.863542][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.863679][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.863817][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.863917][  T193]  register_netdevice (net/core/dev.c:11488)
[    8.864051][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.864214][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.864346][  T193]  register_netdev (net/core/dev.c:11552)
[    8.864482][  T193]  loopback_net_init (drivers/net/loopback.c:218)
[    8.864619][  T193]  ops_init (net/core/net_namespace.c:137)
[    8.864725][  T193]  setup_net (net/core/net_namespace.c:446)
[    8.864826][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.864956][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.865088][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.865221][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    8.865352][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.865488][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.865626][  T193]  ksys_unshare (kernel/fork.c:3243)
[    8.865763][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.865894][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.866025][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    8.866158][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    8.866291][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.866424][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.866555][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.866771][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.866904][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.867035][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.867199][  T193] RIP: 0033:0x7fb929abfbcb
[    8.867337][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.867817][  T193] RSP: 002b:00007ffd5a3f86f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    8.868015][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb929abfbcb
[    8.868211][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    8.868406][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    8.868611][  T193] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5a3fa920
[    8.868813][  T193] R13: 0000000000000001 R14: 00007fb9297fd6f8 R15: 00007ffd5a3fc886
| [    8.873250][  T193] ------------[ cut here ]------------
| [    8.873386][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/193
| [    8.873620][  T193] Modules linked in:
| [    8.874020][  T193] Tainted: [W]=WARN
[    8.874120][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.874284][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.874455][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.874928][  T193] RSP: 0018:ffa0000000907918 EFLAGS: 00010286
[    8.875096][  T193] RAX: 00000000ffffffa6 RBX: ff1100000bdca200 RCX: 1ff4000000120ee9
[    8.875290][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bdca2bc
[    8.875486][  T193] RBP: ff11000009691000 R08: 1fe22000017b9459 R09: ff1100000f7a8b80
[    8.875686][  T193] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.875886][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009691000
[    8.876082][  T193] FS:  00007fb9297fd840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[    8.876311][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.876479][  T193] CR2: 0000000000479648 CR3: 0000000004b59003 CR4: 0000000000771ef0
[    8.876686][  T193] PKRU: 55555554
[    8.876788][  T193] Call Trace:
[    8.876885][  T193]  <TASK>
[    8.876952][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.877083][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.877212][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.877312][  T193]  register_netdevice (net/core/dev.c:11488)
[    8.877446][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.877618][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.877755][  T193]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    8.877887][  T193]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    8.878017][  T193]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    8.878148][  T193]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    8.878278][  T193]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    8.878413][  T193]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[    8.878546][  T193]  ops_init (net/core/net_namespace.c:137)
[    8.878654][  T193]  setup_net (net/core/net_namespace.c:446)
[    8.878759][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.878888][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.879017][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.879148][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    8.879279][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.879415][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.879551][  T193]  ksys_unshare (kernel/fork.c:3243)
[    8.879692][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.879828][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.879956][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    8.880086][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    8.880217][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.880346][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.880483][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.880617][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.880751][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.880881][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.881042][  T193] RIP: 0033:0x7fb929abfbcb
[    8.881176][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.881651][  T193] RSP: 002b:00007ffd5a3f86f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    8.881853][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb929abfbcb
[    8.882047][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    8.882240][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    8.882441][  T193] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5a3fa920
[    8.882641][  T193] R13: 0000000000000001 R14: 00007fb9297fd6f8 R15: 00007ffd5a3fc886
| [    8.886533][  T193] ------------[ cut here ]------------
| [    8.886676][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/193
| [    8.886909][  T193] Modules linked in:
| [    8.887275][  T193] Tainted: [W]=WARN
[    8.887379][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.887549][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.887730][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.888198][  T193] RSP: 0018:ffa00000009078f8 EFLAGS: 00010286
[    8.888367][  T193] RAX: 00000000ffffffa6 RBX: ff11000009154040 RCX: 1ff4000000120ee5
[    8.888567][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000091540fc
[    8.888776][  T193] RBP: ff1100000f5e4000 R08: 1fe220000122a821 R09: ff1100000f7a8b80
[    8.888973][  T193] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.889173][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f5e4000
[    8.889371][  T193] FS:  00007fb9297fd840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[    8.889611][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.889782][  T193] CR2: 0000000000479648 CR3: 0000000004b59003 CR4: 0000000000771ef0
[    8.889989][  T193] PKRU: 55555554
[    8.890088][  T193] Call Trace:
[    8.890187][  T193]  <TASK>
[    8.890255][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.890388][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.890523][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.890629][  T193]  register_netdevice (net/core/dev.c:11488)
[    8.890769][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.890937][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    8.891071][  T193]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    8.891204][  T193]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    8.891336][  T193]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    8.891475][  T193]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    8.891612][  T193]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    8.891750][  T193]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[    8.891882][  T193]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    8.892020][  T193]  vti_init_net (net/ipv4/ip_vti.c:517)
[    8.892152][  T193]  ops_init (net/core/net_namespace.c:137)
[    8.892255][  T193]  setup_net (net/core/net_namespace.c:446)
[    8.892355][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.892488][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.892625][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.892862][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    8.893000][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.893134][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.893268][  T193]  ksys_unshare (kernel/fork.c:3243)
[    8.893491][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.893627][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.893766][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    8.893897][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    8.894124][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.894257][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.894390][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.894524][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.894660][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.894797][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.894960][  T193] RIP: 0033:0x7fb929abfbcb
[    8.895096][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.895665][  T193] RSP: 002b:00007ffd5a3f86f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    8.895960][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb929abfbcb
[    8.896155][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    8.896355][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    8.896645][  T193] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5a3fa920
[    8.896846][  T193] R13: 0000000000000001 R14: 00007fb9297fd6f8 R15: 00007ffd5a3fc886
| [    8.901505][  T193] ------------[ cut here ]------------
| [    8.901758][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/193
| [    8.901988][  T193] Modules linked in:
| [    8.902358][  T193] Tainted: [W]=WARN
[    8.902459][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.902630][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.902809][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.903399][  T193] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[    8.903663][  T193] RAX: 00000000ffffffa6 RBX: ff11000009155e00 RCX: 1ff4000000120f15
[    8.903869][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009155ebc
[    8.904067][  T193] RBP: ff11000009264000 R08: 1fe220000122abd9 R09: ff1100000f7a8b80
[    8.904355][  T193] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.904551][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009264000
[    8.904767][  T193] FS:  00007fb9297fd840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[    8.905087][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.905257][  T193] CR2: 0000000000479648 CR3: 0000000004b59003 CR4: 0000000000771ef0
[    8.905545][  T193] PKRU: 55555554
[    8.905649][  T193] Call Trace:
[    8.905751][  T193]  <TASK>
[    8.905818][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.905948][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.906165][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.906270][  T193]  register_netdevice (net/core/dev.c:11488)
[    8.906403][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.906569][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.906798][  T193]  register_netdev (net/core/dev.c:11552)
[    8.906929][  T193]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[    8.907063][  T193]  ops_init (net/core/net_namespace.c:137)
[    8.907163][  T193]  setup_net (net/core/net_namespace.c:446)
[    8.907267][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.907487][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.907621][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.907760][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    8.907893][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.908112][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.908243][  T193]  ksys_unshare (kernel/fork.c:3243)
[    8.908377][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.908510][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.908737][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    8.908874][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    8.909007][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.909136][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.909354][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.909486][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.909626][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.909768][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.910016][  T193] RIP: 0033:0x7fb929abfbcb
[    8.910153][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.910720][  T193] RSP: 002b:00007ffd5a3f86f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    8.910924][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb929abfbcb
[    8.911205][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    8.911398][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    8.911606][  T193] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5a3fa920
[    8.911946][  T193] R13: 0000000000000001 R14: 00007fb9297fd6f8 R15: 00007ffd5a3fc886
| [    8.923780][  T193] ------------[ cut here ]------------
| [    8.923950][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/193
| [    8.924189][  T193] Modules linked in:
| [    8.924567][  T193] Tainted: [W]=WARN
[    8.924684][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.924861][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.925035][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.925502][  T193] RSP: 0018:ffa0000000907a68 EFLAGS: 00010286
[    8.925676][  T193] RAX: 00000000ffffffa6 RBX: ff1100000cb2ac80 RCX: 1ff4000000120f13
[    8.925878][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cb2ad3c
[    8.926077][  T193] RBP: ff1100000a99c000 R08: 1fe22000019655a9 R09: ff1100000f7a8b80
[    8.926274][  T193] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    8.926478][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a99c000
[    8.926684][  T193] FS:  00007fb9297fd840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[    8.926938][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.927110][  T193] CR2: 00007f8a925ad000 CR3: 0000000004b59002 CR4: 0000000000771ef0
[    8.927318][  T193] PKRU: 55555554
[    8.927421][  T193] Call Trace:
[    8.927523][  T193]  <TASK>
[    8.927598][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.927739][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.927874][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.927977][  T193]  register_netdevice (net/core/dev.c:11488)
[    8.928111][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.928279][  T193]  register_netdev (net/core/dev.c:11552)
[    8.928413][  T193]  sit_init_net (net/ipv6/sit.c:1860)
[    8.928546][  T193]  ops_init (net/core/net_namespace.c:137)
[    8.928674][  T193]  setup_net (net/core/net_namespace.c:446)
[    8.928779][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.928908][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.929038][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.929171][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    8.929305][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.929441][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.929572][  T193]  ksys_unshare (kernel/fork.c:3243)
[    8.929713][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.929844][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.929975][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    8.930105][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    8.930239][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.930368][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.930503][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.930638][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.930773][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.930905][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.931072][  T193] RIP: 0033:0x7fb929abfbcb
[    8.931214][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.931691][  T193] RSP: 002b:00007ffd5a3f86f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    8.931893][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb929abfbcb
[    8.932087][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    8.932280][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    8.932477][  T193] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5a3fa920
[    8.932675][  T193] R13: 0000000000000001 R14: 00007fb9297fd6f8 R15: 00007ffd5a3fc886
| [    8.943866][  T193] ------------[ cut here ]------------
| [    8.944007][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/193
| [    8.944235][  T193] Modules linked in:
| [    8.944613][  T193] Tainted: [W]=WARN
[    8.944718][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.944886][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.945059][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.945524][  T193] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[    8.945698][  T193] RAX: 00000000ffffffa6 RBX: ff1100000c242580 RCX: 1ff4000000120f15
[    8.945903][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c24263c
[    8.946102][  T193] RBP: ff1100000f664000 R08: 1fe22000018484c9 R09: ff1100000f7a8b80
[    8.946300][  T193] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    8.946503][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f664000
[    8.946713][  T193] FS:  00007fb9297fd840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[    8.946946][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.947113][  T193] CR2: 00007f8a925ad000 CR3: 0000000004b59002 CR4: 0000000000771ef0
[    8.947312][  T193] PKRU: 55555554
[    8.947413][  T193] Call Trace:
[    8.947510][  T193]  <TASK>
[    8.947578][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.947720][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.947851][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.947951][  T193]  register_netdevice (net/core/dev.c:11488)
[    8.948084][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.948247][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.948379][  T193]  register_netdev (net/core/dev.c:11552)
[    8.948516][  T193]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[    8.948653][  T193]  ops_init (net/core/net_namespace.c:137)
[    8.948758][  T193]  setup_net (net/core/net_namespace.c:446)
[    8.948857][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.948988][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.949118][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.949252][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    8.949384][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.949519][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.949657][  T193]  ksys_unshare (kernel/fork.c:3243)
[    8.949795][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.949926][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.950061][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    8.950197][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    8.950334][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.950474][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.950615][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.950756][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.950892][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.951027][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.951193][  T193] RIP: 0033:0x7fb929abfbcb
[    8.951335][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.951836][  T193] RSP: 002b:00007ffd5a3f86f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    8.952039][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb929abfbcb
[    8.952236][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    8.952437][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    8.952637][  T193] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd5a3fa920
[    8.952837][  T193] R13: 0000000000000001 R14: 00007fb9297fd6f8 R15: 00007ffd5a3fc886
| [    8.981870][  T194] ------------[ cut here ]------------
| [    8.982027][  T194] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/194
| [    8.982261][  T194] Modules linked in:
| [    8.982652][  T194] Tainted: [W]=WARN
[    8.982761][  T194] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.982928][  T194] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.983101][  T194] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.983660][  T194] RSP: 0018:ffa0000000917020 EFLAGS: 00010286
[    8.983837][  T194] RAX: 00000000ffffffa6 RBX: ff1100000cb2a040 RCX: 1ff4000000122dca
[    8.984036][  T194] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cb2a0fc
[    8.984235][  T194] RBP: ff1100000a1ec000 R08: 1fe2200001965421 R09: ff1100000f7aae58
[    8.984439][  T194] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[    8.984734][  T194] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    8.984936][  T194] FS:  00007f3b6a57c840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[    8.985172][  T194] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.985339][  T194] CR2: 0000000014ad7988 CR3: 0000000004c7f004 CR4: 0000000000771ef0
[    8.985545][  T194] PKRU: 55555554
[    8.985726][  T194] Call Trace:
[    8.985828][  T194]  <TASK>
[    8.985898][  T194]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.986034][  T194]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.986137][  T194]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.986269][  T194]  __dev_notify_flags (net/core/dev.c:9787)
[    8.986406][  T194]  ? netif_change_name (net/core/dev.c:1495)
[    8.986542][  T194]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.986761][  T194]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    8.986896][  T194]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.987030][  T194]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    8.987165][  T194]  netif_change_flags (net/core/dev.c:9820)
[    8.987299][  T194]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    8.987438][  T194]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.987576][  T194]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.987791][  T194]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.987960][  T194]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.988093][  T194]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.988227][  T194]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.988359][  T194]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.988499][  T194]  ? __kernel_text_address (kernel/extable.c:79)
[    8.988715][  T194]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.988850][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.988984][  T194]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.989117][  T194]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.989250][  T194]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.989383][  T194]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.989519][  T194]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.989725][  T194]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.989862][  T194]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    8.989998][  T194]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.990132][  T194]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.990268][  T194]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.990406][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.990546][  T194]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.990773][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.990908][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.991043][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.991177][  T194]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.991311][  T194]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.991451][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.991631][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.991770][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.991903][  T194]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.992040][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.992174][  T194]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.992309][  T194]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.992448][  T194]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.992587][  T194]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.992724][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.992857][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.992992][  T194]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.993129][  T194]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.993263][  T194]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.993400][  T194]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    8.993537][  T194]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    8.993678][  T194]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.993817][  T194]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.993952][  T194]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.994088][  T194]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.994222][  T194]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.994357][  T194]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.994496][  T194]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.994633][  T194]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.994772][  T194]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.994938][  T194]  ? move_addr_to_kernel (net/socket.c:258)
[    8.995075][  T194]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.995208][  T194]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.995342][  T194]  ___sys_sendmsg (net/socket.c:2752)
[    8.995479][  T194]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.995651][  T194]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.995803][  T194]  __sys_sendmsg (net/socket.c:2784)
[    8.995938][  T194]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.996071][  T194]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    8.996241][  T194]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    8.996376][  T194]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.996515][  T194]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.996654][  T194]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.996793][  T194]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.996926][  T194]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.997090][  T194] RIP: 0033:0x7f3b6a7b608e
[    8.997230][  T194] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    8.997721][  T194] RSP: 002b:00007fffd95a1690 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.997923][  T194] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f3b6a7b608e
[    8.998123][  T194] RDX: 0000000000000000 RSI: 00007fffd95a1740 RDI: 0000000000000005
[    8.998324][  T194] RBP: 00007fffd95a16a0 R08: 0000000000000000 R09: 0000000000000000
[    8.998526][  T194] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d652
[    8.998734][  T194] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffd95a1e10
| [   12.303210][   T68] ------------[ cut here ]------------
| [   12.303459][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   12.303721][   T68] Modules linked in: unix_diag
| [   12.304162][   T68] Tainted: [W]=WARN
[   12.304254][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.304408][   T68] Workqueue: netns cleanup_net
[   12.304543][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.304757][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.305185][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   12.305340][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cda0e40 RCX: 1ff4000000092eed
[   12.305525][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cda0efc
[   12.305716][   T68] RBP: ff1100000f664000 R08: 1fe22000019b41e1 R09: ff11000008e42ed0
[   12.305894][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.306073][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.306266][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   12.306479][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.306639][   T68] CR2: 0000562e7e39ed5c CR3: 000000004d34d001 CR4: 0000000000771ef0
[   12.306827][   T68] PKRU: 55555554
[   12.306918][   T68] Call Trace:
[   12.307009][   T68]  <TASK>
[   12.307074][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.307227][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.307407][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.307698][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.308826][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.308949][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.309070][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.309191][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.309310][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   12.309434][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.309555][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   12.309689][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.309812][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.309932][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.310051][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.310174][   T68]  process_one_work (kernel/workqueue.c:3314)
[   12.310295][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.310417][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.310541][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.310669][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.310793][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   12.310913][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.311030][   T68]  kthread (kernel/kthread.c:436)
[   12.311119][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.311268][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.311388][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.311511][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.311668][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.311793][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.311913][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.314346][   T68] ------------[ cut here ]------------
| [   12.314472][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   12.314715][   T68] Modules linked in: unix_diag
| [   12.315117][   T68] Tainted: [W]=WARN
[   12.315208][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.315356][   T68] Workqueue: netns cleanup_net
[   12.315484][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.315643][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.316073][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   12.316247][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cda1540 RCX: 1ff4000000092eed
[   12.316434][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cda15fc
[   12.316618][   T68] RBP: ff1100000a99c000 R08: 1fe22000019b42c1 R09: ff11000008e42ed0
[   12.316804][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.316982][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.317163][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   12.317371][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.317528][   T68] CR2: 0000562e7e39ed5c CR3: 000000004d34d001 CR4: 0000000000771ef0
[   12.317718][   T68] PKRU: 55555554
[   12.317809][   T68] Call Trace:
[   12.317896][   T68]  <TASK>
[   12.317958][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.318114][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.318266][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.318386][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.318506][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.318629][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.318757][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.318880][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.319002][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   12.319119][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.319244][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   12.319364][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.319486][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.319614][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.319737][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.319858][   T68]  process_one_work (kernel/workqueue.c:3314)
[   12.319982][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.320098][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.320222][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.320343][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.320466][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   12.320594][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.320720][   T68]  kthread (kernel/kthread.c:436)
[   12.320810][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.320957][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.321076][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.321193][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.321348][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.321470][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.321596][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.323909][   T68] ------------[ cut here ]------------
| [   12.324033][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   12.324273][   T68] Modules linked in: unix_diag
| [   12.324678][   T68] Tainted: [W]=WARN
[   12.324774][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.324929][   T68] Workqueue: netns cleanup_net
[   12.325059][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.325222][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.325663][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   12.325818][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cda1c40 RCX: 1ff4000000092eed
[   12.325997][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cda1cfc
[   12.326172][   T68] RBP: ff11000009264000 R08: 1fe22000019b43a1 R09: ff11000008e42ed0
[   12.326346][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.326526][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.326720][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   12.326928][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.327076][   T68] CR2: 0000562e7e39ed5c CR3: 000000004d34d001 CR4: 0000000000771ef0
[   12.327255][   T68] PKRU: 55555554
[   12.327343][   T68] Call Trace:
[   12.327434][   T68]  <TASK>
[   12.327496][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.327656][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.327813][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.327932][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.328059][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.328182][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.328301][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.328429][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.328550][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   12.328677][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.328812][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   12.328933][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.329055][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.329173][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.329291][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.329414][   T68]  process_one_work (kernel/workqueue.c:3314)
[   12.329537][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.329659][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.329787][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.329910][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.330110][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   12.330228][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.330350][   T68]  kthread (kernel/kthread.c:436)
[   12.330442][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.330666][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.330792][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.330909][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.331057][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.331247][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.331365][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.333915][   T68] ------------[ cut here ]------------
| [   12.334039][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   12.334339][   T68] Modules linked in: unix_diag
| [   12.334823][   T68] Tainted: [W]=WARN
[   12.334913][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.335058][   T68] Workqueue: netns cleanup_net
[   12.335180][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.335414][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.335924][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   12.336072][   T68] RAX: 00000000ffffffa6 RBX: ff1100000bbde040 RCX: 1ff4000000092eed
[   12.336250][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bbde0fc
[   12.336511][   T68] RBP: ff1100000f5e4000 R08: 1fe220000177bc21 R09: ff11000008e42ed0
[   12.336692][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.336870][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.337125][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   12.337334][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.337554][   T68] CR2: 0000562e7e39ed5c CR3: 000000004d34d001 CR4: 0000000000771ef0
[   12.337743][   T68] PKRU: 55555554
[   12.337831][   T68] Call Trace:
[   12.337919][   T68]  <TASK>
[   12.337982][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.338205][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.338350][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.338472][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.338666][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.338790][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.338910][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.339029][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.339220][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   12.339337][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.339462][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   12.339579][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.339779][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.339898][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.340015][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.340144][   T68]  process_one_work (kernel/workqueue.c:3314)
[   12.340408][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.340527][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.340654][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.340779][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.340971][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   12.341089][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.341208][   T68]  kthread (kernel/kthread.c:436)
[   12.341297][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.341592][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.341719][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.341837][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.341984][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.342173][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.342293][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.344627][   T68] ------------[ cut here ]------------
| [   12.344749][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   12.344982][   T68] Modules linked in: unix_diag
| [   12.345376][   T68] Tainted: [W]=WARN
[   12.345469][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.345619][   T68] Workqueue: netns cleanup_net
[   12.345745][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.345899][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.346315][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   12.346467][   T68] RAX: 00000000ffffffa6 RBX: ff1100000bbde3c0 RCX: 1ff4000000092eed
[   12.346653][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bbde47c
[   12.346833][   T68] RBP: ff11000009691000 R08: 1fe220000177bc91 R09: ff11000008e42ed0
[   12.347007][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.347186][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.347365][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   12.347573][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.347729][   T68] CR2: 0000562e7e39ed5c CR3: 000000004d34d001 CR4: 0000000000771ef0
[   12.347906][   T68] PKRU: 55555554
[   12.347996][   T68] Call Trace:
[   12.348084][   T68]  <TASK>
[   12.348145][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.348299][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.348447][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   12.348566][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   12.348691][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.348814][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   12.348932][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.349057][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   12.349178][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   12.349295][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.349419][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   12.349536][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.349661][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.349790][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.349908][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.350028][   T68]  process_one_work (kernel/workqueue.c:3314)
[   12.350152][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.350270][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.350396][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.350524][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.351019][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   12.351139][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.351256][   T68]  kthread (kernel/kthread.c:436)
[   12.351346][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.351494][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.351617][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.351739][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.351885][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.352071][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.352193][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.367518][   T68] ------------[ cut here ]------------
| [   12.367656][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   12.367909][   T68] Modules linked in: unix_diag
| [   12.368316][   T68] Tainted: [W]=WARN
[   12.368413][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.368568][   T68] Workqueue: netns cleanup_net
[   12.368703][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.368871][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.369315][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   12.369476][   T68] RAX: 00000000ffffffa6 RBX: ff1100000bbde580 RCX: 1ff4000000092eaf
[   12.369721][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bbde63c
[   12.369904][   T68] RBP: ff1100000a1ec000 R08: 1fe220000177bcc9 R09: ff11000008e42ed0
[   12.370087][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   12.370272][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   12.370462][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   12.370733][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.370888][   T68] CR2: 0000562e7e39ed5c CR3: 000000004d34d001 CR4: 0000000000771ef0
[   12.371073][   T68] PKRU: 55555554
[   12.371166][   T68] Call Trace:
[   12.371258][   T68]  <TASK>
[   12.371322][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.371501][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.371644][   T68]  netif_close_many (net/core/dev.c:1804)
[   12.371773][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.371897][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.372020][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.372143][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   12.372266][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   12.372422][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   12.372578][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   12.372756][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   12.372880][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   12.373003][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.373159][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.373285][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.373414][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.373537][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.373716][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.373841][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.373967][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   12.374089][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.374214][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   12.374338][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.374465][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.374641][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.374771][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.374896][   T68]  process_one_work (kernel/workqueue.c:3314)
[   12.375028][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.375151][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.375278][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.375404][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.375531][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   12.375704][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.375835][   T68]  kthread (kernel/kthread.c:436)
[   12.375927][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.376080][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.376203][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.376327][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.376482][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.376659][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.376787][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.380063][   T68] ------------[ cut here ]------------
| [   12.380188][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   12.380424][   T68] Modules linked in: unix_diag
| [   12.381393][   T68] Tainted: [W]=WARN
[   12.381542][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.381770][   T68] Workqueue: netns cleanup_net
[   12.381895][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.382048][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.382476][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   12.382680][   T68] RAX: 00000000ffffffa6 RBX: ff1100000bbdf8c0 RCX: 1ff4000000092ed5
[   12.382865][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bbdf97c
[   12.383045][   T68] RBP: ff1100000a1ec000 R08: 1fe220000177bf31 R09: ff11000008e42ed0
[   12.383226][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.383415][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.383642][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   12.383857][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.384008][   T68] CR2: 0000562e7e39ed5c CR3: 000000004d34d001 CR4: 0000000000771ef0
[   12.384188][   T68] PKRU: 55555554
[   12.384276][   T68] Call Trace:
[   12.384366][   T68]  <TASK>
[   12.384432][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.384631][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.384791][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.384914][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   12.385037][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   12.385157][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   12.385277][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   12.385398][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   12.385523][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   12.385694][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.385821][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   12.385948][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   12.386065][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   12.386184][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.386305][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.386428][   T68]  process_one_work (kernel/workqueue.c:3314)
[   12.386552][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   12.386724][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.386850][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   12.386972][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.387091][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   12.387210][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   12.387329][   T68]  kthread (kernel/kthread.c:436)
[   12.387420][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.387566][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.387739][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.387862][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   12.388009][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.388128][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   12.388246][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   12.402790][  T213] ------------[ cut here ]------------
| [   12.402970][  T213] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/213
| [   12.403246][  T213] Modules linked in: unix_diag
| [   12.403770][  T213] Tainted: [W]=WARN
[   12.403916][  T213] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.404127][  T213] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.404348][  T213] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.404886][  T213] RSP: 0018:ffa0000000907a80 EFLAGS: 00010286
[   12.405102][  T213] RAX: 00000000ffffffa6 RBX: ff1100000c12d380 RCX: 1ff4000000120f16
[   12.405351][  T213] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c12d43c
[   12.405612][  T213] RBP: ff11000005b44000 R08: 1fe2200001825a89 R09: ff11000005300b80
[   12.405866][  T213] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.406106][  T213] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005b44000
[   12.406351][  T213] FS:  00007f48a4903840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   12.406650][  T213] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.406875][  T213] CR2: 00007f48a4b0a430 CR3: 0000000004ebc003 CR4: 0000000000771ef0
[   12.407120][  T213] PKRU: 55555554
[   12.407267][  T213] Call Trace:
[   12.407415][  T213]  <TASK>
[   12.407534][  T213]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.407733][  T213]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.407914][  T213]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.408062][  T213]  register_netdevice (net/core/dev.c:11488)
[   12.408244][  T213]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.408460][  T213]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.408653][  T213]  register_netdev (net/core/dev.c:11552)
[   12.408845][  T213]  loopback_net_init (drivers/net/loopback.c:218)
[   12.409031][  T213]  ops_init (net/core/net_namespace.c:137)
[   12.409177][  T213]  setup_net (net/core/net_namespace.c:446)
[   12.409324][  T213]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.409511][  T213]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.409699][  T213]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.409887][  T213]  copy_net_ns (net/core/net_namespace.c:579)
[   12.410070][  T213]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.410251][  T213]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.410432][  T213]  ksys_unshare (kernel/fork.c:3243)
[   12.410627][  T213]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.410821][  T213]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.411004][  T213]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.411184][  T213]  ? __ia32_sys_open (fs/open.c:1374)
[   12.411364][  T213]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.411553][  T213]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.411753][  T213]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.411933][  T213]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.412114][  T213]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.412293][  T213]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.412512][  T213] RIP: 0033:0x7f48a4bc5bcb
[   12.412721][  T213] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.413235][  T213] RSP: 002b:00007ffdbbc37898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.413489][  T213] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f48a4bc5bcb
[   12.413750][  T213] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.413995][  T213] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.414237][  T213] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdbbc39ac0
[   12.414489][  T213] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdbbc3a886
| [   12.419203][  T213] ------------[ cut here ]------------
| [   12.419380][  T213] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/213
| [   12.420084][  T213] Modules linked in: unix_diag
| [   12.420595][  T213] Tainted: [W]=WARN
[   12.420746][  T213] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.420959][  T213] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.421175][  T213] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.421699][  T213] RSP: 0018:ffa0000000907918 EFLAGS: 00010286
[   12.421919][  T213] RAX: 00000000ffffffa6 RBX: ff1100000c243700 RCX: 1ff4000000120ee9
[   12.422165][  T213] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c2437bc
[   12.422404][  T213] RBP: ff11000008b59000 R08: 1fe22000018486f9 R09: ff11000005300b80
[   12.422665][  T213] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.422916][  T213] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b59000
[   12.423164][  T213] FS:  00007f48a4903840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   12.423439][  T213] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.423664][  T213] CR2: 00007f48a4b0a430 CR3: 0000000004ebc003 CR4: 0000000000771ef0
[   12.423918][  T213] PKRU: 55555554
[   12.424064][  T213] Call Trace:
[   12.424222][  T213]  <TASK>
[   12.424339][  T213]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.424523][  T213]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.424722][  T213]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.424872][  T213]  register_netdevice (net/core/dev.c:11488)
[   12.425051][  T213]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.425258][  T213]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.425438][  T213]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.425632][  T213]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.425819][  T213]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.426001][  T213]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.426178][  T213]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.426357][  T213]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   12.426544][  T213]  ops_init (net/core/net_namespace.c:137)
[   12.426703][  T213]  setup_net (net/core/net_namespace.c:446)
[   12.426858][  T213]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.427037][  T213]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.427215][  T213]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.427394][  T213]  copy_net_ns (net/core/net_namespace.c:579)
[   12.427595][  T213]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.427786][  T213]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.427968][  T213]  ksys_unshare (kernel/fork.c:3243)
[   12.428149][  T213]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.428330][  T213]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.428516][  T213]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.428707][  T213]  ? __ia32_sys_open (fs/open.c:1374)
[   12.428896][  T213]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.429073][  T213]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.429249][  T213]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.429430][  T213]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.429626][  T213]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.429814][  T213]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.430027][  T213] RIP: 0033:0x7f48a4bc5bcb
[   12.430210][  T213] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.430738][  T213] RSP: 002b:00007ffdbbc37898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.430983][  T213] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f48a4bc5bcb
[   12.431222][  T213] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.431468][  T213] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.431727][  T213] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdbbc39ac0
[   12.431969][  T213] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdbbc3a886
| [   12.436295][  T213] ------------[ cut here ]------------
| [   12.436481][  T213] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/213
| [   12.436778][  T213] Modules linked in: unix_diag
| [   12.437277][  T213] Tainted: [W]=WARN
[   12.437426][  T213] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.437654][  T213] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.437885][  T213] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.438399][  T213] RSP: 0018:ffa00000009078f8 EFLAGS: 00010286
[   12.438632][  T213] RAX: 00000000ffffffa6 RBX: ff1100000c243000 RCX: 1ff4000000120ee5
[   12.438888][  T213] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c2430bc
[   12.439132][  T213] RBP: ff11000008c39000 R08: 1fe2200001848619 R09: ff11000005300b80
[   12.439374][  T213] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.439634][  T213] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c39000
[   12.439890][  T213] FS:  00007f48a4903840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   12.440168][  T213] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.440381][  T213] CR2: 00007f48a4b0a430 CR3: 0000000004ebc003 CR4: 0000000000771ef0
[   12.440645][  T213] PKRU: 55555554
[   12.440795][  T213] Call Trace:
[   12.440943][  T213]  <TASK>
[   12.441059][  T213]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.441240][  T213]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.441425][  T213]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.441576][  T213]  register_netdevice (net/core/dev.c:11488)
[   12.441779][  T213]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.441994][  T213]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   12.442177][  T213]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   12.442355][  T213]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   12.442542][  T213]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   12.442746][  T213]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   12.442926][  T213]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   12.443107][  T213]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   12.443288][  T213]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.443478][  T213]  vti_init_net (net/ipv4/ip_vti.c:517)
[   12.443675][  T213]  ops_init (net/core/net_namespace.c:137)
[   12.443830][  T213]  setup_net (net/core/net_namespace.c:446)
[   12.443977][  T213]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.444155][  T213]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.444336][  T213]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.444525][  T213]  copy_net_ns (net/core/net_namespace.c:579)
[   12.444728][  T213]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.444914][  T213]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.445093][  T213]  ksys_unshare (kernel/fork.c:3243)
[   12.445271][  T213]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.445458][  T213]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.445653][  T213]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.445848][  T213]  ? __ia32_sys_open (fs/open.c:1374)
[   12.446037][  T213]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.446216][  T213]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.446398][  T213]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.446597][  T213]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.446786][  T213]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.446966][  T213]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.447176][  T213] RIP: 0033:0x7f48a4bc5bcb
[   12.447362][  T213] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.447899][  T213] RSP: 002b:00007ffdbbc37898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.448145][  T213] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f48a4bc5bcb
[   12.448388][  T213] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.448652][  T213] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.448903][  T213] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdbbc39ac0
[   12.449145][  T213] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdbbc3a886
| [   12.459145][  T213] ------------[ cut here ]------------
| [   12.459324][  T213] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/213
| [   12.459620][  T213] Modules linked in: unix_diag
| [   12.460134][  T213] Tainted: [W]=WARN
[   12.460279][  T213] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.460495][  T213] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.460742][  T213] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.461251][  T213] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[   12.461471][  T213] RAX: 00000000ffffffa6 RBX: ff1100000cb2b700 RCX: 1ff4000000120f15
[   12.461796][  T213] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cb2b7bc
[   12.462093][  T213] RBP: ff11000008c41000 R08: 1fe22000019656f9 R09: ff11000005300b80
[   12.462390][  T213] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.462702][  T213] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c41000
[   12.463008][  T213] FS:  00007f48a4903840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   12.463337][  T213] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.463624][  T213] CR2: 00007f48a4b0a430 CR3: 0000000004ebc003 CR4: 0000000000771ef0
[   12.463946][  T213] PKRU: 55555554
[   12.464148][  T213] Call Trace:
[   12.464344][  T213]  <TASK>
[   12.464517][  T213]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.464819][  T213]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.465057][  T213]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.465259][  T213]  register_netdevice (net/core/dev.c:11488)
[   12.465496][  T213]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.465779][  T213]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.466013][  T213]  register_netdev (net/core/dev.c:11552)
[   12.466241][  T213]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   12.466478][  T213]  ops_init (net/core/net_namespace.c:137)
[   12.466690][  T213]  setup_net (net/core/net_namespace.c:446)
[   12.466900][  T213]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.467133][  T213]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.467360][  T213]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.467613][  T213]  copy_net_ns (net/core/net_namespace.c:579)
[   12.467848][  T213]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.468080][  T213]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.468310][  T213]  ksys_unshare (kernel/fork.c:3243)
[   12.468544][  T213]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.468794][  T213]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.469027][  T213]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.469256][  T213]  ? __ia32_sys_open (fs/open.c:1374)
[   12.469488][  T213]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.469738][  T213]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.469967][  T213]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.470194][  T213]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.470427][  T213]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.470674][  T213]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.470942][  T213] RIP: 0033:0x7f48a4bc5bcb
[   12.471219][  T213] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.471805][  T213] RSP: 002b:00007ffdbbc37898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.472104][  T213] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f48a4bc5bcb
[   12.472395][  T213] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.472708][  T213] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.473008][  T213] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdbbc39ac0
[   12.473304][  T213] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdbbc3a886
| [   12.478609][  T213] ------------[ cut here ]------------
| [   12.478760][  T213] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/213
| [   12.478990][  T213] Modules linked in: unix_diag
| [   12.479388][  T213] Tainted: [W]=WARN
[   12.479488][  T213] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.479668][  T213] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.479844][  T213] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.480307][  T213] RSP: 0018:ffa0000000907a68 EFLAGS: 00010286
[   12.480474][  T213] RAX: 00000000ffffffa6 RBX: ff110000126d3700 RCX: 1ff4000000120f13
[   12.480677][  T213] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000126d37bc
[   12.480877][  T213] RBP: ff1100000a95c000 R08: 1fe22000024da6f9 R09: ff11000005300b80
[   12.481071][  T213] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.481263][  T213] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a95c000
[   12.481464][  T213] FS:  00007f48a4903840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   12.481698][  T213] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.481867][  T213] CR2: 00005622e9427d5c CR3: 0000000004ebc006 CR4: 0000000000771ef0
[   12.482065][  T213] PKRU: 55555554
[   12.482162][  T213] Call Trace:
[   12.482259][  T213]  <TASK>
[   12.482327][  T213]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.482463][  T213]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.482597][  T213]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.482697][  T213]  register_netdevice (net/core/dev.c:11488)
[   12.482835][  T213]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.482999][  T213]  register_netdev (net/core/dev.c:11552)
[   12.483129][  T213]  sit_init_net (net/ipv6/sit.c:1860)
[   12.483261][  T213]  ops_init (net/core/net_namespace.c:137)
[   12.483361][  T213]  setup_net (net/core/net_namespace.c:446)
[   12.483465][  T213]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.483598][  T213]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.483734][  T213]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.483866][  T213]  copy_net_ns (net/core/net_namespace.c:579)
[   12.483999][  T213]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.484133][  T213]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.484263][  T213]  ksys_unshare (kernel/fork.c:3243)
[   12.484392][  T213]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.484525][  T213]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.484662][  T213]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.484800][  T213]  ? __ia32_sys_open (fs/open.c:1374)
[   12.484932][  T213]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.485065][  T213]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.485196][  T213]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.485325][  T213]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.485456][  T213]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.485592][  T213]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.485757][  T213] RIP: 0033:0x7f48a4bc5bcb
[   12.485894][  T213] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.486360][  T213] RSP: 002b:00007ffdbbc37898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.486561][  T213] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f48a4bc5bcb
[   12.486764][  T213] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.486960][  T213] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.487153][  T213] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdbbc39ac0
[   12.487347][  T213] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdbbc3a886
| [   12.492246][  T213] ------------[ cut here ]------------
| [   12.492383][  T213] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/213
| [   12.493103][  T213] Modules linked in: unix_diag
| [   12.493509][  T213] Tainted: [W]=WARN
[   12.493663][  T213] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.493830][  T213] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.494002][  T213] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.494469][  T213] RSP: 0018:ffa0000000907a78 EFLAGS: 00010286
[   12.494689][  T213] RAX: 00000000ffffffa6 RBX: ff11000012d09000 RCX: 1ff4000000120f15
[   12.494887][  T213] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012d090bc
[   12.495082][  T213] RBP: ff11000008349000 R08: 1fe22000025a1219 R09: ff11000005300b80
[   12.495329][  T213] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.495528][  T213] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008349000
[   12.495783][  T213] FS:  00007f48a4903840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   12.496012][  T213] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.496175][  T213] CR2: 00005622e9427d5c CR3: 0000000004ebc006 CR4: 0000000000771ef0
[   12.496372][  T213] PKRU: 55555554
[   12.496473][  T213] Call Trace:
[   12.496571][  T213]  <TASK>
[   12.496694][  T213]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.496832][  T213]  ? notifier_call_chain (kernel/notifier.c:85)
[   12.496962][  T213]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.497062][  T213]  register_netdevice (net/core/dev.c:11488)
[   12.497196][  T213]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.497357][  T213]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.497491][  T213]  register_netdev (net/core/dev.c:11552)
[   12.497675][  T213]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   12.497811][  T213]  ops_init (net/core/net_namespace.c:137)
[   12.497912][  T213]  setup_net (net/core/net_namespace.c:446)
[   12.498012][  T213]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   12.498142][  T213]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   12.498274][  T213]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   12.498409][  T213]  copy_net_ns (net/core/net_namespace.c:579)
[   12.498541][  T213]  create_new_namespaces (kernel/nsproxy.c:132)
[   12.498734][  T213]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   12.498867][  T213]  ksys_unshare (kernel/fork.c:3243)
[   12.499000][  T213]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.499132][  T213]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   12.499263][  T213]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   12.499395][  T213]  ? __ia32_sys_open (fs/open.c:1374)
[   12.499531][  T213]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   12.499719][  T213]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.499851][  T213]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.499982][  T213]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.500112][  T213]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.500245][  T213]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.500408][  T213] RIP: 0033:0x7f48a4bc5bcb
[   12.500547][  T213] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.501074][  T213] RSP: 002b:00007ffdbbc37898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   12.501273][  T213] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f48a4bc5bcb
[   12.501469][  T213] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   12.501723][  T213] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   12.501918][  T213] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdbbc39ac0
[   12.502117][  T213] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdbbc3a886
| [   12.530470][  T214] ------------[ cut here ]------------
| [   12.530631][  T214] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/214
| [   12.530866][  T214] Modules linked in: unix_diag
| [   12.531277][  T214] Tainted: [W]=WARN
[   12.531375][  T214] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.531541][  T214] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.531726][  T214] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   12.532190][  T214] RSP: 0018:ffa00000008f7020 EFLAGS: 00010286
[   12.532354][  T214] RAX: 00000000ffffffa6 RBX: ff110000126dae40 RCX: 1ff400000011edca
[   12.532549][  T214] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000126daefc
[   12.532755][  T214] RBP: ff11000005b44000 R08: 1fe22000024db5e1 R09: ff11000005305158
[   12.532951][  T214] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   12.533143][  T214] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   12.533338][  T214] FS:  00007f27a94a0840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   12.533567][  T214] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.533746][  T214] CR2: 00007f27a97701a0 CR3: 000000000c893001 CR4: 0000000000771ef0
[   12.533942][  T214] PKRU: 55555554
[   12.534039][  T214] Call Trace:
[   12.534136][  T214]  <TASK>
[   12.534204][  T214]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.534335][  T214]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.534437][  T214]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   12.534568][  T214]  __dev_notify_flags (net/core/dev.c:9787)
[   12.535077][  T214]  ? netif_change_name (net/core/dev.c:1495)
[   12.535209][  T214]  ? __dev_change_flags (net/core/dev.c:9752)
[   12.535338][  T214]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   12.535470][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.535606][  T214]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   12.535747][  T214]  netif_change_flags (net/core/dev.c:9820)
[   12.535883][  T214]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   12.536015][  T214]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   12.536147][  T214]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   12.536277][  T214]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.536443][  T214]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.536573][  T214]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.536710][  T214]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.536845][  T214]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.536976][  T214]  ? __kernel_text_address (kernel/extable.c:79)
[   12.537106][  T214]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.537237][  T214]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.537367][  T214]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   12.537502][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.537638][  T214]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   12.537773][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.537902][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.538034][  T214]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   12.538164][  T214]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   12.538293][  T214]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   12.538425][  T214]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   12.538557][  T214]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   12.538695][  T214]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   12.538835][  T214]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   12.538967][  T214]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.539096][  T214]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.539225][  T214]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.539355][  T214]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   12.539487][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.539625][  T214]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.539760][  T214]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.539888][  T214]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.540017][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   12.540148][  T214]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   12.540278][  T214]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   12.540414][  T214]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.540544][  T214]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.540680][  T214]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.540819][  T214]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   12.540946][  T214]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   12.541076][  T214]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.541208][  T214]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.541339][  T214]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.541477][  T214]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.541612][  T214]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.541752][  T214]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.541884][  T214]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.542014][  T214]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.542145][  T214]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.542275][  T214]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.542410][  T214]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.542543][  T214]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   12.542680][  T214]  ? copy_msghdr_from_user (net/socket.c:2635)
[   12.542820][  T214]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   12.542981][  T214]  ? move_addr_to_kernel (net/socket.c:258)
[   12.543112][  T214]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.543241][  T214]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   12.543374][  T214]  ___sys_sendmsg (net/socket.c:2752)
[   12.543507][  T214]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   12.543675][  T214]  ? copy_msghdr_from_user (net/socket.c:2603)
[   12.543823][  T214]  __sys_sendmsg (net/socket.c:2784)
[   12.543954][  T214]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   12.544082][  T214]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   12.544245][  T214]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.544375][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.544508][  T214]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.544644][  T214]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.544779][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.544908][  T214]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.545070][  T214] RIP: 0033:0x7f27a96da08e
[   12.545207][  T214] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.545678][  T214] RSP: 002b:00007ffc2d7a87c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.545878][  T214] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f27a96da08e
[   12.546073][  T214] RDX: 0000000000000000 RSI: 00007ffc2d7a8870 RDI: 0000000000000005
[   12.546265][  T214] RBP: 00007ffc2d7a87d0 R08: 0000000000000000 R09: 0000000000000000
[   12.546461][  T214] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d655
[   12.546660][  T214] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc2d7a8f40
| [   15.781958][   T68] ------------[ cut here ]------------
| [   15.782160][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   15.782447][   T68] Modules linked in: unix_diag
| [   15.783003][   T68] Tainted: [W]=WARN
[   15.783137][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.783330][   T68] Workqueue: netns cleanup_net
[   15.783509][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.783733][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.784193][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   15.784404][   T68] RAX: 00000000ffffffa6 RBX: ff110000021f51c0 RCX: 1ff4000000092eed
[   15.784654][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000021f527c
[   15.784884][   T68] RBP: ff11000008349000 R08: 1fe220000043ea51 R09: ff11000008e42ed0
[   15.785105][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.785325][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.785559][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   15.785829][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.786023][   T68] CR2: 00007f40a576d000 CR3: 000000004d34d004 CR4: 0000000000771ef0
[   15.786245][   T68] PKRU: 55555554
[   15.786378][   T68] Call Trace:
[   15.786531][   T68]  <TASK>
[   15.786653][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.786859][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.787058][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.787225][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.787393][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.787562][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.787751][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.787928][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.788095][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   15.788258][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.788431][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   15.788611][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.788785][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.788950][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.789122][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.789290][   T68]  process_one_work (kernel/workqueue.c:3314)
[   15.789468][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.789646][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.789823][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.789990][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.790153][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   15.790320][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.790493][   T68]  kthread (kernel/kthread.c:436)
[   15.790644][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.790847][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.791011][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.791178][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.791370][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.791545][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.791729][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.799100][   T68] ------------[ cut here ]------------
| [   15.799267][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   15.799559][   T68] Modules linked in: unix_diag
| [   15.800115][   T68] Tainted: [W]=WARN
[   15.800250][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.800452][   T68] Workqueue: netns cleanup_net
[   15.800771][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.801065][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.801637][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   15.801885][   T68] RAX: 00000000ffffffa6 RBX: ff110000021f43c0 RCX: 1ff4000000092eed
[   15.802150][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000021f447c
[   15.802416][   T68] RBP: ff1100000a95c000 R08: 1fe220000043e891 R09: ff11000008e42ed0
[   15.802695][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.802976][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.803241][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   15.803541][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.803796][   T68] CR2: 00007f40a576d000 CR3: 000000004d34d004 CR4: 0000000000771ef0
[   15.804062][   T68] PKRU: 55555554
[   15.804239][   T68] Call Trace:
[   15.804419][   T68]  <TASK>
[   15.804575][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.804879][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.805117][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.805323][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.805539][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.805765][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.805978][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.806190][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.806399][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   15.806629][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.806852][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   15.807063][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.807270][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.807509][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.807782][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.808046][   T68]  process_one_work (kernel/workqueue.c:3314)
[   15.808303][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.808562][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.808839][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.809095][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.809345][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   15.809611][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.809798][   T68]  kthread (kernel/kthread.c:436)
[   15.809934][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.810130][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.810294][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.810467][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.810692][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.810863][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.811030][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.814010][   T68] ------------[ cut here ]------------
| [   15.814177][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   15.814534][   T68] Modules linked in: unix_diag
| [   15.815121][   T68] Tainted: [W]=WARN
[   15.815257][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.815455][   T68] Workqueue: netns cleanup_net
[   15.815641][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.815856][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.816318][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   15.816519][   T68] RAX: 00000000ffffffa6 RBX: ff11000010f98ac0 RCX: 1ff4000000092eed
[   15.816762][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010f98b7c
[   15.816984][   T68] RBP: ff11000008c41000 R08: 1fe22000021f3171 R09: ff11000008e42ed0
[   15.817213][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.817435][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.817670][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   15.817931][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.818124][   T68] CR2: 00007f40a576d000 CR3: 000000004d34d004 CR4: 0000000000771ef0
[   15.818348][   T68] PKRU: 55555554
[   15.818486][   T68] Call Trace:
[   15.818632][   T68]  <TASK>
[   15.818748][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.819015][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.819206][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.819372][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.819544][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.819728][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.819894][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.820062][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.820229][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   15.820468][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.820650][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   15.820894][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.821058][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.821297][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.821467][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.821646][   T68]  process_one_work (kernel/workqueue.c:3314)
[   15.821850][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.822086][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.822257][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.822425][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.822604][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   15.822924][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.823093][   T68]  kthread (kernel/kthread.c:436)
[   15.823227][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.823496][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.823750][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.823989][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.824184][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.824349][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.824521][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.827556][   T68] ------------[ cut here ]------------
| [   15.828121][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   15.828453][   T68] Modules linked in: unix_diag
| [   15.829040][   T68] Tainted: [W]=WARN
[   15.829217][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.829460][   T68] Workqueue: netns cleanup_net
[   15.829683][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.829934][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.830447][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   15.830694][   T68] RAX: 00000000ffffffa6 RBX: ff11000010f98e40 RCX: 1ff4000000092eed
[   15.830962][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010f98efc
[   15.831223][   T68] RBP: ff11000008c39000 R08: 1fe22000021f31e1 R09: ff11000008e42ed0
[   15.831488][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   15.831772][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.832033][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   15.832324][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.832566][   T68] CR2: 00007f40a576d000 CR3: 000000004d34d004 CR4: 0000000000771ef0
[   15.832851][   T68] PKRU: 55555554
[   15.833027][   T68] Call Trace:
[   15.833202][   T68]  <TASK>
[   15.833352][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.833609][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.833851][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.834059][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.834266][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.834474][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.834696][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.834926][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.835188][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   15.835449][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.835717][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   15.835979][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.836230][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.836489][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.836755][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.836983][   T68]  process_one_work (kernel/workqueue.c:3314)
[   15.837145][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.837307][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.837482][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.837659][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.837824][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   15.837989][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.838151][   T68]  kthread (kernel/kthread.c:436)
[   15.838284][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.838483][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.838660][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.838836][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.839029][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.839190][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.839350][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.841800][   T68] ------------[ cut here ]------------
| [   15.841927][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   15.842160][   T68] Modules linked in: unix_diag
| [   15.842844][   T68] Tainted: [W]=WARN
[   15.842936][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.843085][   T68] Workqueue: netns cleanup_net
[   15.843206][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.843356][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.843789][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   15.843933][   T68] RAX: 00000000ffffffa6 RBX: ff11000010f991c0 RCX: 1ff4000000092eed
[   15.844111][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010f9927c
[   15.844283][   T68] RBP: ff11000008b59000 R08: 1fe22000021f3251 R09: ff11000008e42ed0
[   15.844458][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.844636][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.844820][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   15.845024][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.845169][   T68] CR2: 00007f11046d27d0 CR3: 000000001497b006 CR4: 0000000000771ef0
[   15.845347][   T68] PKRU: 55555554
[   15.845436][   T68] Call Trace:
[   15.845521][   T68]  <TASK>
[   15.845588][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.845739][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.845882][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   15.845999][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   15.846117][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.846232][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   15.846349][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.846468][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   15.846591][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   15.846706][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.846831][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   15.846948][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.847063][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.847179][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.847293][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.847413][   T68]  process_one_work (kernel/workqueue.c:3314)
[   15.847532][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.847651][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.847775][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.847892][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.848006][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   15.848122][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.848235][   T68]  kthread (kernel/kthread.c:436)
[   15.848322][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.848468][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.848590][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.848712][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.848860][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.848975][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.849090][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.859192][   T68] ------------[ cut here ]------------
| [   15.859359][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   15.859679][   T68] Modules linked in: unix_diag
| [   15.860187][   T68] Tainted: [W]=WARN
[   15.860326][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.860532][   T68] Workqueue: netns cleanup_net
[   15.860738][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.860943][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.861426][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   15.861643][   T68] RAX: 00000000ffffffa6 RBX: ff11000010f99380 RCX: 1ff4000000092eaf
[   15.861879][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010f9943c
[   15.862107][   T68] RBP: ff11000005b44000 R08: 1fe22000021f3289 R09: ff11000008e42ed0
[   15.862337][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   15.862573][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   15.862825][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   15.863086][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.863286][   T68] CR2: 00007f40a576d000 CR3: 000000004d34d004 CR4: 0000000000771ef0
[   15.863523][   T68] PKRU: 55555554
[   15.863674][   T68] Call Trace:
[   15.863821][   T68]  <TASK>
[   15.863931][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.864102][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.864242][   T68]  netif_close_many (net/core/dev.c:1804)
[   15.864413][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.864599][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.864777][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.864949][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   15.865117][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   15.865317][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   15.865521][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   15.865703][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   15.865881][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   15.866055][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.866258][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.866434][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.866619][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.866797][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.866966][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   15.867137][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.867313][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   15.867488][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.867676][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   15.867853][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.868022][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.868191][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.868361][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.868545][   T68]  process_one_work (kernel/workqueue.c:3314)
[   15.868739][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.868908][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.869081][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.869252][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.869425][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   15.869610][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.869789][   T68]  kthread (kernel/kthread.c:436)
[   15.869931][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.870130][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.870300][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.870479][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.870693][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.870869][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.871039][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.873837][   T68] ------------[ cut here ]------------
| [   15.873975][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   15.874215][   T68] Modules linked in: unix_diag
| [   15.874648][   T68] Tainted: [W]=WARN
[   15.874747][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.874898][   T68] Workqueue: netns cleanup_net
[   15.875025][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.875185][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.875629][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   15.875791][   T68] RAX: 00000000ffffffa6 RBX: ff11000004b0c3c0 RCX: 1ff4000000092ed5
[   15.875974][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004b0c47c
[   15.876157][   T68] RBP: ff11000005b44000 R08: 1fe2200000961891 R09: ff11000008e42ed0
[   15.876339][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   15.876524][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   15.876717][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   15.876939][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.877093][   T68] CR2: 00007f1104961668 CR3: 000000001497b003 CR4: 0000000000771ef0
[   15.877278][   T68] PKRU: 55555554
[   15.877371][   T68] Call Trace:
[   15.877468][   T68]  <TASK>
[   15.877533][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   15.877698][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   15.877857][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.877981][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   15.878104][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   15.878227][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   15.878351][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   15.878478][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   15.878611][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   15.878736][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.878861][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   15.878986][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   15.879109][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   15.879232][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   15.879353][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   15.879480][   T68]  process_one_work (kernel/workqueue.c:3314)
[   15.879615][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   15.879743][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   15.879871][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   15.879996][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.880118][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   15.880241][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   15.880365][   T68]  kthread (kernel/kthread.c:436)
[   15.880462][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.880621][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.880750][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.880873][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   15.881027][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.881151][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   15.881274][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   15.890587][  T230] ------------[ cut here ]------------
| [   15.890763][  T230] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/230
| [   15.891003][  T230] Modules linked in: unix_diag
| [   15.891418][  T230] Tainted: [W]=WARN
[   15.891521][  T230] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.891696][  T230] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.891874][  T230] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.892355][  T230] RSP: 0018:ffa0000000927a80 EFLAGS: 00010286
[   15.892530][  T230] RAX: 00000000ffffffa6 RBX: ff11000004b0d8c0 RCX: 1ff4000000124f16
[   15.892740][  T230] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004b0d97c
[   15.892943][  T230] RBP: ff11000007c89000 R08: 1fe2200000961b31 R09: ff1100000ea12e80
[   15.893146][  T230] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.893345][  T230] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007c89000
[   15.893550][  T230] FS:  00007f11044c8840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   15.893797][  T230] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.893969][  T230] CR2: 00007f11046d27d0 CR3: 000000001497b006 CR4: 0000000000771ef0
[   15.894170][  T230] PKRU: 55555554
[   15.894270][  T230] Call Trace:
[   15.894369][  T230]  <TASK>
[   15.894442][  T230]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.894577][  T230]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.894726][  T230]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.894830][  T230]  register_netdevice (net/core/dev.c:11488)
[   15.894968][  T230]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.895137][  T230]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.895272][  T230]  register_netdev (net/core/dev.c:11552)
[   15.895406][  T230]  loopback_net_init (drivers/net/loopback.c:218)
[   15.895544][  T230]  ops_init (net/core/net_namespace.c:137)
[   15.895653][  T230]  setup_net (net/core/net_namespace.c:446)
[   15.895760][  T230]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.895895][  T230]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.896029][  T230]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.896165][  T230]  copy_net_ns (net/core/net_namespace.c:579)
[   15.896300][  T230]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.896440][  T230]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.896575][  T230]  ksys_unshare (kernel/fork.c:3243)
[   15.896716][  T230]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.896857][  T230]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.896992][  T230]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.897129][  T230]  ? __ia32_sys_open (fs/open.c:1374)
[   15.897265][  T230]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.897398][  T230]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.897537][  T230]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.897675][  T230]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.897812][  T230]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.897941][  T230]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.898103][  T230] RIP: 0033:0x7f110478abcb
[   15.898238][  T230] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.898705][  T230] RSP: 002b:00007ffc44a4efa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.898906][  T230] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f110478abcb
[   15.899103][  T230] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.899302][  T230] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.899505][  T230] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc44a511d0
[   15.899701][  T230] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc44a52886
| [   15.903844][  T230] ------------[ cut here ]------------
| [   15.903994][  T230] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/230
| [   15.904226][  T230] Modules linked in: unix_diag
| [   15.904635][  T230] Tainted: [W]=WARN
[   15.904744][  T230] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.904911][  T230] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.905081][  T230] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.905554][  T230] RSP: 0018:ffa0000000927918 EFLAGS: 00010286
[   15.905732][  T230] RAX: 00000000ffffffa6 RBX: ff1100000e0623c0 RCX: 1ff4000000124ee9
[   15.905930][  T230] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e06247c
[   15.906128][  T230] RBP: ff11000008d81000 R08: 1fe2200001c0c491 R09: ff1100000ea12e80
[   15.906325][  T230] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.906526][  T230] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008d81000
[   15.906732][  T230] FS:  00007f11044c8840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   15.906964][  T230] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.907130][  T230] CR2: 00007f11046d27d0 CR3: 000000001497b006 CR4: 0000000000771ef0
[   15.907331][  T230] PKRU: 55555554
[   15.907433][  T230] Call Trace:
[   15.907534][  T230]  <TASK>
[   15.907607][  T230]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.907745][  T230]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.907879][  T230]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.907979][  T230]  register_netdevice (net/core/dev.c:11488)
[   15.908112][  T230]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.908279][  T230]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.908415][  T230]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   15.908548][  T230]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   15.908685][  T230]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   15.908825][  T230]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   15.908960][  T230]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   15.909094][  T230]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   15.909228][  T230]  ops_init (net/core/net_namespace.c:137)
[   15.909331][  T230]  setup_net (net/core/net_namespace.c:446)
[   15.909435][  T230]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.909567][  T230]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.909704][  T230]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.909843][  T230]  copy_net_ns (net/core/net_namespace.c:579)
[   15.909978][  T230]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.910112][  T230]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.910246][  T230]  ksys_unshare (kernel/fork.c:3243)
[   15.910378][  T230]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.910514][  T230]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.910653][  T230]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.910792][  T230]  ? __ia32_sys_open (fs/open.c:1374)
[   15.910927][  T230]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.911060][  T230]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.911194][  T230]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.911327][  T230]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.911462][  T230]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.911597][  T230]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.911768][  T230] RIP: 0033:0x7f110478abcb
[   15.911906][  T230] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.912378][  T230] RSP: 002b:00007ffc44a4efa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.912580][  T230] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f110478abcb
[   15.912785][  T230] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.912982][  T230] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.913182][  T230] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc44a511d0
[   15.913380][  T230] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc44a52886
| [   15.917169][  T230] ------------[ cut here ]------------
| [   15.917314][  T230] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/230
| [   15.917549][  T230] Modules linked in: unix_diag
| [   15.918018][  T230] Tainted: [W]=WARN
[   15.918122][  T230] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.918289][  T230] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.918466][  T230] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.918954][  T230] RSP: 0018:ffa00000009278f8 EFLAGS: 00010286
[   15.919124][  T230] RAX: 00000000ffffffa6 RBX: ff1100000d69f700 RCX: 1ff4000000124ee5
[   15.919326][  T230] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d69f7bc
[   15.919530][  T230] RBP: ff11000009691000 R08: 1fe2200001ad3ef9 R09: ff1100000ea12e80
[   15.919737][  T230] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.919939][  T230] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009691000
[   15.920139][  T230] FS:  00007f11044c8840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   15.920372][  T230] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.920545][  T230] CR2: 00007f11046d27d0 CR3: 000000001497b006 CR4: 0000000000771ef0
[   15.920761][  T230] PKRU: 55555554
[   15.920861][  T230] Call Trace:
[   15.920962][  T230]  <TASK>
[   15.921031][  T230]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.921164][  T230]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.921299][  T230]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.921401][  T230]  register_netdevice (net/core/dev.c:11488)
[   15.921540][  T230]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.921713][  T230]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   15.921855][  T230]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   15.921989][  T230]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   15.922123][  T230]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   15.922257][  T230]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   15.922393][  T230]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   15.922533][  T230]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   15.922672][  T230]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   15.922817][  T230]  vti_init_net (net/ipv4/ip_vti.c:517)
[   15.922951][  T230]  ops_init (net/core/net_namespace.c:137)
[   15.923056][  T230]  setup_net (net/core/net_namespace.c:446)
[   15.923158][  T230]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.923290][  T230]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.923425][  T230]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.923560][  T230]  copy_net_ns (net/core/net_namespace.c:579)
[   15.923701][  T230]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.923844][  T230]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.923979][  T230]  ksys_unshare (kernel/fork.c:3243)
[   15.924113][  T230]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.924248][  T230]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.924381][  T230]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.924518][  T230]  ? __ia32_sys_open (fs/open.c:1374)
[   15.924659][  T230]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.924797][  T230]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.924930][  T230]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.925064][  T230]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.925197][  T230]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.925331][  T230]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.925499][  T230] RIP: 0033:0x7f110478abcb
[   15.925643][  T230] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.926124][  T230] RSP: 002b:00007ffc44a4efa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.926325][  T230] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f110478abcb
[   15.926528][  T230] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.926736][  T230] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.926937][  T230] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc44a511d0
[   15.927138][  T230] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc44a52886
| [   15.931204][  T230] ------------[ cut here ]------------
| [   15.931338][  T230] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/230
| [   15.931564][  T230] Modules linked in: unix_diag
| [   15.931968][  T230] Tainted: [W]=WARN
[   15.932064][  T230] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.932222][  T230] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.932388][  T230] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.932853][  T230] RSP: 0018:ffa0000000927a78 EFLAGS: 00010286
[   15.933016][  T230] RAX: 00000000ffffffa6 RBX: ff1100000d69e740 RCX: 1ff4000000124f15
[   15.933212][  T230] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d69e7fc
[   15.933412][  T230] RBP: ff1100000a1ec000 R08: 1fe2200001ad3d01 R09: ff1100000ea12e80
[   15.933614][  T230] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.933815][  T230] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a1ec000
[   15.934008][  T230] FS:  00007f11044c8840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   15.934230][  T230] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.934390][  T230] CR2: 00007f11046d27d0 CR3: 000000001497b006 CR4: 0000000000771ef0
[   15.934589][  T230] PKRU: 55555554
[   15.934684][  T230] Call Trace:
[   15.934785][  T230]  <TASK>
[   15.934850][  T230]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.934976][  T230]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.935103][  T230]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.935201][  T230]  register_netdevice (net/core/dev.c:11488)
[   15.935329][  T230]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.935489][  T230]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.935625][  T230]  register_netdev (net/core/dev.c:11552)
[   15.935759][  T230]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   15.935889][  T230]  ops_init (net/core/net_namespace.c:137)
[   15.935988][  T230]  setup_net (net/core/net_namespace.c:446)
[   15.936085][  T230]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.936213][  T230]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.936340][  T230]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.936473][  T230]  copy_net_ns (net/core/net_namespace.c:579)
[   15.936606][  T230]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.936768][  T230]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.936897][  T230]  ksys_unshare (kernel/fork.c:3243)
[   15.937026][  T230]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.937154][  T230]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.937280][  T230]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.937410][  T230]  ? __ia32_sys_open (fs/open.c:1374)
[   15.937540][  T230]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.937670][  T230]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.937802][  T230]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.937929][  T230]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.938058][  T230]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.938186][  T230]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.938345][  T230] RIP: 0033:0x7f110478abcb
[   15.938481][  T230] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.938944][  T230] RSP: 002b:00007ffc44a4efa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.939134][  T230] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f110478abcb
[   15.939323][  T230] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.939514][  T230] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.939709][  T230] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc44a511d0
[   15.939904][  T230] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc44a52886
| [   15.943923][  T230] ------------[ cut here ]------------
| [   15.944062][  T230] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/230
| [   15.944284][  T230] Modules linked in: unix_diag
| [   15.944678][  T230] Tainted: [W]=WARN
[   15.944779][  T230] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.944940][  T230] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.945104][  T230] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.945558][  T230] RSP: 0018:ffa0000000927a68 EFLAGS: 00010286
[   15.945726][  T230] RAX: 00000000ffffffa6 RBX: ff1100000e063e00 RCX: 1ff4000000124f13
[   15.945919][  T230] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e063ebc
[   15.946108][  T230] RBP: ff11000009e14000 R08: 1fe2200001c0c7d9 R09: ff1100000ea12e80
[   15.946298][  T230] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.946491][  T230] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009e14000
[   15.946689][  T230] FS:  00007f11044c8840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   15.946918][  T230] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.947078][  T230] CR2: 00007f11046d27d0 CR3: 000000001497b006 CR4: 0000000000771ef0
[   15.947271][  T230] PKRU: 55555554
[   15.947367][  T230] Call Trace:
[   15.947467][  T230]  <TASK>
[   15.947532][  T230]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.947663][  T230]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.947795][  T230]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.947893][  T230]  register_netdevice (net/core/dev.c:11488)
[   15.948022][  T230]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.948184][  T230]  register_netdev (net/core/dev.c:11552)
[   15.948312][  T230]  sit_init_net (net/ipv6/sit.c:1860)
[   15.948446][  T230]  ops_init (net/core/net_namespace.c:137)
[   15.948544][  T230]  setup_net (net/core/net_namespace.c:446)
[   15.948646][  T230]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.948862][  T230]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.948990][  T230]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.949120][  T230]  copy_net_ns (net/core/net_namespace.c:579)
[   15.949251][  T230]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.949468][  T230]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.949600][  T230]  ksys_unshare (kernel/fork.c:3243)
[   15.949736][  T230]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.949864][  T230]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.950074][  T230]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.950202][  T230]  ? __ia32_sys_open (fs/open.c:1374)
[   15.950331][  T230]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.950462][  T230]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.950679][  T230]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.950814][  T230]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.950942][  T230]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.951069][  T230]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.951310][  T230] RIP: 0033:0x7f110478abcb
[   15.951447][  T230] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.952004][  T230] RSP: 002b:00007ffc44a4efa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.952195][  T230] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f110478abcb
[   15.952383][  T230] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.952666][  T230] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.952859][  T230] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc44a511d0
[   15.953132][  T230] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc44a52886
| [   15.957960][  T230] ------------[ cut here ]------------
| [   15.958093][  T230] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/230
| [   15.958312][  T230] Modules linked in: unix_diag
| [   15.958806][  T230] Tainted: [W]=WARN
[   15.958904][  T230] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.959152][  T230] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   15.959318][  T230] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   15.959783][  T230] RSP: 0018:ffa0000000927a78 EFLAGS: 00010286
[   15.959944][  T230] RAX: 00000000ffffffa6 RBX: ff1100000e00fa80 RCX: 1ff4000000124f15
[   15.960219][  T230] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e00fb3c
[   15.960412][  T230] RBP: ff11000008b61000 R08: 1fe2200001c01f69 R09: ff1100000ea12e80
[   15.960609][  T230] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   15.960893][  T230] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b61000
[   15.961083][  T230] FS:  00007f11044c8840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   15.961305][  T230] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.961553][  T230] CR2: 00007f11046d27d0 CR3: 000000001497b006 CR4: 0000000000771ef0
[   15.961758][  T230] PKRU: 55555554
[   15.961853][  T230] Call Trace:
[   15.962030][  T230]  <TASK>
[   15.962096][  T230]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   15.962222][  T230]  ? notifier_call_chain (kernel/notifier.c:85)
[   15.962349][  T230]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   15.962450][  T230]  register_netdevice (net/core/dev.c:11488)
[   15.962669][  T230]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   15.962835][  T230]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   15.962972][  T230]  register_netdev (net/core/dev.c:11552)
[   15.963100][  T230]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   15.963311][  T230]  ops_init (net/core/net_namespace.c:137)
[   15.963413][  T230]  setup_net (net/core/net_namespace.c:446)
[   15.963511][  T230]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   15.963644][  T230]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   15.963863][  T230]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   15.963993][  T230]  copy_net_ns (net/core/net_namespace.c:579)
[   15.964120][  T230]  create_new_namespaces (kernel/nsproxy.c:132)
[   15.964250][  T230]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   15.964465][  T230]  ksys_unshare (kernel/fork.c:3243)
[   15.964595][  T230]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   15.964730][  T230]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   15.964858][  T230]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   15.965070][  T230]  ? __ia32_sys_open (fs/open.c:1374)
[   15.965200][  T230]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   15.965326][  T230]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   15.965454][  T230]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   15.965670][  T230]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   15.965804][  T230]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   15.965932][  T230]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.966091][  T230] RIP: 0033:0x7f110478abcb
[   15.966313][  T230] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   15.966868][  T230] RSP: 002b:00007ffc44a4efa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   15.967064][  T230] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f110478abcb
[   15.967254][  T230] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   15.967534][  T230] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   15.967735][  T230] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc44a511d0
[   15.967928][  T230] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc44a52886
| [   16.000106][  T231] ------------[ cut here ]------------
| [   16.000289][  T231] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/231
| [   16.000573][  T231] Modules linked in: unix_diag
| [   16.001153][  T231] Tainted: [W]=WARN
[   16.001298][  T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.001516][  T231] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   16.002351][  T231] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   16.002883][  T231] RSP: 0018:ffa0000000697020 EFLAGS: 00010286
[   16.003099][  T231] RAX: 00000000ffffffa6 RBX: ff11000009a0c580 RCX: 1ff40000000d2dca
[   16.003339][  T231] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a0c63c
[   16.003597][  T231] RBP: ff11000007c89000 R08: 1fe22000013418c9 R09: ff1100000ea10b58
[   16.003849][  T231] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   16.004090][  T231] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   16.004330][  T231] FS:  00007f0855cc7840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   16.004626][  T231] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.004850][  T231] CR2: 00000000019a3988 CR3: 000000001497a006 CR4: 0000000000771ef0
[   16.005093][  T231] PKRU: 55555554
[   16.005237][  T231] Call Trace:
[   16.005381][  T231]  <TASK>
[   16.005503][  T231]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   16.005699][  T231]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   16.005860][  T231]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   16.006042][  T231]  __dev_notify_flags (net/core/dev.c:9787)
[   16.006231][  T231]  ? netif_change_name (net/core/dev.c:1495)
[   16.006416][  T231]  ? __dev_change_flags (net/core/dev.c:9752)
[   16.006616][  T231]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   16.006804][  T231]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.006986][  T231]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   16.007166][  T231]  netif_change_flags (net/core/dev.c:9820)
[   16.007346][  T231]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   16.007530][  T231]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   16.007731][  T231]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   16.007910][  T231]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   16.008118][  T231]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.008294][  T231]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.008478][  T231]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.008672][  T231]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.008862][  T231]  ? __kernel_text_address (kernel/extable.c:79)
[   16.009045][  T231]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.009228][  T231]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.009409][  T231]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.009609][  T231]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.009800][  T231]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   16.009985][  T231]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.010166][  T231]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.010349][  T231]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   16.010535][  T231]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   16.010738][  T231]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   16.010921][  T231]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   16.011103][  T231]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   16.011283][  T231]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   16.011471][  T231]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   16.011677][  T231]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.011863][  T231]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.012043][  T231]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.012219][  T231]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   16.012396][  T231]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.012597][  T231]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.012787][  T231]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.012966][  T231]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.013145][  T231]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   16.013322][  T231]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   16.013508][  T231]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   16.013697][  T231]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.013881][  T231]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.014059][  T231]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.014245][  T231]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   16.014429][  T231]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   16.014626][  T231]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   16.014813][  T231]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.014992][  T231]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.015172][  T231]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   16.015348][  T231]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   16.015533][  T231]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.015736][  T231]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.015913][  T231]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.016090][  T231]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   16.016269][  T231]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   16.016452][  T231]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   16.016646][  T231]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   16.016833][  T231]  ? copy_msghdr_from_user (net/socket.c:2635)
[   16.017013][  T231]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   16.017220][  T231]  ? move_addr_to_kernel (net/socket.c:258)
[   16.017397][  T231]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.017598][  T231]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   16.017793][  T231]  ___sys_sendmsg (net/socket.c:2752)
[   16.017973][  T231]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   16.018189][  T231]  ? copy_msghdr_from_user (net/socket.c:2603)
[   16.018384][  T231]  __sys_sendmsg (net/socket.c:2784)
[   16.018572][  T231]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   16.018772][  T231]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   16.018994][  T231]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   16.019174][  T231]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   16.019351][  T231]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.019532][  T231]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   16.019731][  T231]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   16.019912][  T231]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.020118][  T231] RIP: 0033:0x7f0855f0108e
[   16.020298][  T231] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.020832][  T231] RSP: 002b:00007ffc95ab8080 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.021078][  T231] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0855f0108e
[   16.021315][  T231] RDX: 0000000000000000 RSI: 00007ffc95ab8130 RDI: 0000000000000005
[   16.021562][  T231] RBP: 00007ffc95ab8090 R08: 0000000000000000 R09: 0000000000000000
[   16.021823][  T231] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d659
[   16.022064][  T231] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc95ab8800
| [   19.256143][   T68] ------------[ cut here ]------------
| [   19.256314][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   19.256559][   T68] Modules linked in: unix_diag
| [   19.257239][   T68] Tainted: [W]=WARN
[   19.257329][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.257528][   T68] Workqueue: netns cleanup_net
[   19.257684][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.257851][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.258274][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   19.258427][   T68] RAX: 00000000ffffffa6 RBX: ff11000012439000 RCX: 1ff4000000092eed
[   19.258611][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000124390bc
[   19.258790][   T68] RBP: ff11000008b61000 R08: 1fe2200002487219 R09: ff11000008e42ed0
[   19.258967][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.259146][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.259327][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   19.259533][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.259686][   T68] CR2: 00007f8ccb141f98 CR3: 000000000a378006 CR4: 0000000000771ef0
[   19.259877][   T68] PKRU: 55555554
[   19.259968][   T68] Call Trace:
[   19.260055][   T68]  <TASK>
[   19.260118][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.260272][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.260418][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.260535][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.260661][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.260781][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.260900][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.261030][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.261150][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   19.261267][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.261386][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   19.261504][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.261625][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.261749][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.261865][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.261984][   T68]  process_one_work (kernel/workqueue.c:3314)
[   19.262104][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.262223][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.262344][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.262465][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.262593][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   19.262712][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.262833][   T68]  kthread (kernel/kthread.c:436)
[   19.262922][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.263067][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.263189][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.263309][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.263463][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.263590][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.263713][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.266558][   T68] ------------[ cut here ]------------
| [   19.266739][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   19.266975][   T68] Modules linked in: unix_diag
| [   19.267360][   T68] Tainted: [W]=WARN
[   19.267449][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.267614][   T68] Workqueue: netns cleanup_net
[   19.267740][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.267897][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.268348][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   19.268513][   T68] RAX: 00000000ffffffa6 RBX: ff11000012439700 RCX: 1ff4000000092eed
[   19.268717][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000124397bc
[   19.268983][   T68] RBP: ff11000009e14000 R08: 1fe22000024872f9 R09: ff11000008e42ed0
[   19.269176][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.269354][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.269625][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   19.269839][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.269991][   T68] CR2: 00007f8ccb141f98 CR3: 000000000a378006 CR4: 0000000000771ef0
[   19.270239][   T68] PKRU: 55555554
[   19.270331][   T68] Call Trace:
[   19.270420][   T68]  <TASK>
[   19.270481][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.270710][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.270862][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.270981][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.271106][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.271293][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.271414][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.271533][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.271725][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   19.271850][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.271971][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   19.272093][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.272210][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.272398][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.272518][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.272643][   T68]  process_one_work (kernel/workqueue.c:3314)
[   19.272770][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.272956][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.273076][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.273195][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.273312][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   19.273503][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.273628][   T68]  kthread (kernel/kthread.c:436)
[   19.273716][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.273866][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.274054][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.274174][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.274318][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.274507][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.274627][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.276984][   T68] ------------[ cut here ]------------
| [   19.277149][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   19.277433][   T68] Modules linked in: unix_diag
| [   19.278030][   T68] Tainted: [W]=WARN
[   19.278165][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.278356][   T68] Workqueue: netns cleanup_net
[   19.278531][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.278752][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.279210][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   19.279402][   T68] RAX: 00000000ffffffa6 RBX: ff1100000fb64e40 RCX: 1ff4000000092eed
[   19.279646][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fb64efc
[   19.279875][   T68] RBP: ff1100000a1ec000 R08: 1fe2200001f6c9e1 R09: ff11000008e42ed0
[   19.280095][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.280314][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.280542][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   19.280816][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.281008][   T68] CR2: 00007f8ccb141f98 CR3: 000000004d34d006 CR4: 0000000000771ef0
[   19.281229][   T68] PKRU: 55555554
[   19.281362][   T68] Call Trace:
[   19.281502][   T68]  <TASK>
[   19.281622][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.281831][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.282051][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.282220][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.282386][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.282554][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.282740][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.282907][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.283075][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   19.283239][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.283409][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   19.283595][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.283765][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.283932][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.284101][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.284268][   T68]  process_one_work (kernel/workqueue.c:3314)
[   19.284438][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.284614][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.284793][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.284961][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.285128][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   19.285366][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.285538][   T68]  kthread (kernel/kthread.c:436)
[   19.285690][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.285892][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.286129][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.286296][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.286496][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.286677][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.286924][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.289652][   T68] ------------[ cut here ]------------
| [   19.289818][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   19.290096][   T68] Modules linked in: unix_diag
| [   19.290595][   T68] Tainted: [W]=WARN
[   19.290740][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.290935][   T68] Workqueue: netns cleanup_net
[   19.291106][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.291310][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.291804][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   19.292002][   T68] RAX: 00000000ffffffa6 RBX: ff1100000fb651c0 RCX: 1ff4000000092eed
[   19.292222][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fb6527c
[   19.292448][   T68] RBP: ff11000009691000 R08: 1fe2200001f6ca51 R09: ff11000008e42ed0
[   19.292682][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.292912][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.293134][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   19.293386][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.293594][   T68] CR2: 00007f8ccb141f98 CR3: 000000004d34d006 CR4: 0000000000771ef0
[   19.293824][   T68] PKRU: 55555554
[   19.293959][   T68] Call Trace:
[   19.294092][   T68]  <TASK>
[   19.294200][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.294399][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.294610][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.294786][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.294954][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.295118][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.295282][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.295454][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.295636][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   19.295816][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.295987][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   19.296150][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.296312][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.296486][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.296661][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.296836][   T68]  process_one_work (kernel/workqueue.c:3314)
[   19.297007][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.297171][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.297339][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.297513][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.297690][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   19.297865][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.298044][   T68]  kthread (kernel/kthread.c:436)
[   19.298180][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.298370][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.298543][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.298720][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.298924][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.299090][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.299257][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.302105][   T68] ------------[ cut here ]------------
| [   19.302268][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   19.302554][   T68] Modules linked in: unix_diag
| [   19.303054][   T68] Tainted: [W]=WARN
[   19.303262][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.303460][   T68] Workqueue: netns cleanup_net
[   19.303647][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.303857][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.304320][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   19.304519][   T68] RAX: 00000000ffffffa6 RBX: ff1100000fb65540 RCX: 1ff4000000092eed
[   19.304761][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fb655fc
[   19.304980][   T68] RBP: ff11000008d81000 R08: 1fe2200001f6cac1 R09: ff11000008e42ed0
[   19.305201][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   19.305503][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.305748][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   19.306076][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.306271][   T68] CR2: 00007f8ccb141f98 CR3: 000000004d34d006 CR4: 0000000000771ef0
[   19.306503][   T68] PKRU: 55555554
[   19.306651][   T68] Call Trace:
[   19.306865][   T68]  <TASK>
[   19.306972][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.307170][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.307360][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   19.307534][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   19.307714][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.307960][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   19.308127][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.308292][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   19.308540][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   19.308716][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.308920][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   19.309095][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.309260][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.309509][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.309691][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.309866][   T68]  process_one_work (kernel/workqueue.c:3314)
[   19.310036][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.310200][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.310367][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.310543][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.310802][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   19.311000][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.311163][   T68]  kthread (kernel/kthread.c:436)
[   19.311309][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.311540][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.311797][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.311963][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.312160][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.312325][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.312499][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.329831][  T247] ------------[ cut here ]------------
| [   19.329979][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/247
| [   19.330205][  T247] Modules linked in: unix_diag
| [   19.330622][  T247] Tainted: [W]=WARN
[   19.330737][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.330900][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.331069][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.331532][  T247] RSP: 0018:ffa00000008f7a80 EFLAGS: 00010286
[   19.331704][  T247] RAX: 00000000ffffffa6 RBX: ff11000012439c40 RCX: 1ff400000011ef16
[   19.331902][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012439cfc
[   19.332097][  T247] RBP: ff11000008c29000 R08: 1fe22000024873a1 R09: ff1100000f118b80
[   19.332288][  T247] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.332485][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c29000
[   19.332689][  T247] FS:  00007fa50e334840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   19.332921][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.333084][  T247] CR2: 00007f8d9f783c40 CR3: 0000000013d41002 CR4: 0000000000771ef0
[   19.333281][  T247] PKRU: 55555554
[   19.333378][  T247] Call Trace:
[   19.333478][  T247]  <TASK>
[   19.333545][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.333682][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.333818][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.333917][  T247]  register_netdevice (net/core/dev.c:11488)
[   19.334048][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.334212][  T247]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.334343][  T247]  register_netdev (net/core/dev.c:11552)
[   19.334480][  T247]  loopback_net_init (drivers/net/loopback.c:218)
[   19.334619][  T247]  ops_init (net/core/net_namespace.c:137)
[   19.334718][  T247]  setup_net (net/core/net_namespace.c:446)
[   19.334823][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.334952][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.335082][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.335216][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   19.335347][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.335484][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.335620][  T247]  ksys_unshare (kernel/fork.c:3243)
[   19.335756][  T247]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.335888][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.336019][  T247]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.336152][  T247]  ? __ia32_sys_open (fs/open.c:1374)
[   19.336284][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.336416][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.336545][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.336680][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.336817][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.336947][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.337109][  T247] RIP: 0033:0x7fa50e5f6bcb
[   19.337245][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.337716][  T247] RSP: 002b:00007ffef5a8d528 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.337918][  T247] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa50e5f6bcb
[   19.338116][  T247] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.338310][  T247] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.338507][  T247] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffef5a8f750
[   19.338707][  T247] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffef5a90886
| [   19.340249][   T68] ------------[ cut here ]------------
| [   19.340383][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   19.340641][   T68] Modules linked in: unix_diag
| [   19.341054][   T68] Tainted: [W]=WARN
[   19.341147][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.341301][   T68] Workqueue: netns cleanup_net
[   19.341432][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.341598][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.342041][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   19.342195][   T68] RAX: 00000000ffffffa6 RBX: ff110000140aec80 RCX: 1ff4000000092eaf
[   19.342383][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000140aed3c
[   19.342569][   T68] RBP: ff11000007c89000 R08: 1fe2200002815da9 R09: ff11000008e42ed0
[   19.342765][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   19.342947][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   19.343132][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   19.343348][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.343506][   T68] CR2: 0000558cfd912d5c CR3: 000000000e13d001 CR4: 0000000000771ef0
[   19.343696][   T68] PKRU: 55555554
[   19.343793][   T68] Call Trace:
[   19.343884][   T68]  <TASK>
[   19.343949][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.344073][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.344167][   T68]  netif_close_many (net/core/dev.c:1804)
[   19.344290][   T68]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   19.344423][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   19.344545][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   19.344708][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   19.344867][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   19.344991][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   19.345113][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   19.345235][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.345390][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.345519][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.345649][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.345775][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.345898][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.346022][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.346146][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   19.346268][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.346393][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   19.346521][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.346647][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.346776][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.346897][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.347027][   T68]  process_one_work (kernel/workqueue.c:3314)
[   19.347153][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.347276][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.347404][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.347532][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.347657][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   19.347787][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.347909][   T68]  kthread (kernel/kthread.c:436)
[   19.348002][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.348154][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.348276][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.348399][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.348555][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.348686][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.348814][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.351570][   T68] ------------[ cut here ]------------
| [   19.351705][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   19.351950][   T68] Modules linked in: unix_diag
| [   19.352339][   T68] Tainted: [W]=WARN
[   19.352433][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.352589][   T68] Workqueue: netns cleanup_net
[   19.352713][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.352871][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.353300][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   19.353451][   T68] RAX: 00000000ffffffa6 RBX: ff11000009a0ce40 RCX: 1ff4000000092ed5
[   19.353635][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a0cefc
[   19.353818][   T68] RBP: ff11000007c89000 R08: 1fe22000013419e1 R09: ff11000008e42ed0
[   19.353997][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   19.354178][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   19.354356][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   19.354566][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.354724][   T68] CR2: 0000558cfd912d5c CR3: 000000000e13d001 CR4: 0000000000771ef0
[   19.354911][   T68] PKRU: 55555554
[   19.355002][   T68] Call Trace:
[   19.355091][   T68]  <TASK>
[   19.355153][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   19.355302][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   19.355455][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.355576][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   19.355754][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   19.355875][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   19.355997][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   19.356118][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   19.356238][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   19.356356][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.356479][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   19.356646][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   19.356769][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   19.356891][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.357010][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.357130][   T68]  process_one_work (kernel/workqueue.c:3314)
[   19.357252][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   19.357370][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.357520][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   19.357694][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.357826][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   19.357948][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   19.358066][   T68]  kthread (kernel/kthread.c:436)
[   19.358156][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.358302][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.358422][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.358542][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   19.358746][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.358872][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   19.358992][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   19.363999][  T247] ------------[ cut here ]------------
| [   19.364137][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/247
| [   19.364364][  T247] Modules linked in: unix_diag
| [   19.364777][  T247] Tainted: [W]=WARN
[   19.364877][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.365040][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.365208][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.365675][  T247] RSP: 0018:ffa00000008f7918 EFLAGS: 00010286
[   19.365842][  T247] RAX: 00000000ffffffa6 RBX: ff11000008f42c80 RCX: 1ff400000011eee9
[   19.366037][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f42d3c
[   19.366231][  T247] RBP: ff11000008144000 R08: 1fe22000011e85a9 R09: ff1100000f118b80
[   19.366424][  T247] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.366622][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008144000
[   19.366825][  T247] FS:  00007fa50e334840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   19.367054][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.367216][  T247] CR2: 00007f8d9f783c40 CR3: 0000000013d41002 CR4: 0000000000771ef0
[   19.367413][  T247] PKRU: 55555554
[   19.367510][  T247] Call Trace:
[   19.367614][  T247]  <TASK>
[   19.367683][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.367820][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.367966][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.368069][  T247]  register_netdevice (net/core/dev.c:11488)
[   19.368201][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.368363][  T247]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.368507][  T247]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.368646][  T247]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.368781][  T247]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.368913][  T247]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.369046][  T247]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.369178][  T247]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   19.369309][  T247]  ops_init (net/core/net_namespace.c:137)
[   19.369412][  T247]  setup_net (net/core/net_namespace.c:446)
[   19.369511][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.369647][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.369783][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.369914][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   19.370046][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.370179][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.370310][  T247]  ksys_unshare (kernel/fork.c:3243)
[   19.370442][  T247]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.370574][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.370708][  T247]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.370843][  T247]  ? __ia32_sys_open (fs/open.c:1374)
[   19.370975][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.371105][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.371234][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.371364][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.371499][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.371633][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.371803][  T247] RIP: 0033:0x7fa50e5f6bcb
[   19.371938][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.372399][  T247] RSP: 002b:00007ffef5a8d528 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.372605][  T247] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa50e5f6bcb
[   19.372804][  T247] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.372999][  T247] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.373192][  T247] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffef5a8f750
[   19.373387][  T247] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffef5a90886
| [   19.377202][  T247] ------------[ cut here ]------------
| [   19.377340][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/247
| [   19.377571][  T247] Modules linked in: unix_diag
| [   19.377983][  T247] Tainted: [W]=WARN
[   19.378082][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.378248][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.378420][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.378895][  T247] RSP: 0018:ffa00000008f78f8 EFLAGS: 00010286
[   19.379064][  T247] RAX: 00000000ffffffa6 RBX: ff110000093e71c0 RCX: 1ff400000011eee5
[   19.379261][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000093e727c
[   19.379459][  T247] RBP: ff110000059fc000 R08: 1fe220000127ce51 R09: ff1100000f118b80
[   19.379660][  T247] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.379862][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000059fc000
[   19.380062][  T247] FS:  00007fa50e334840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   19.380291][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.380456][  T247] CR2: 00007f8d9f783c40 CR3: 0000000013d41002 CR4: 0000000000771ef0
[   19.380659][  T247] PKRU: 55555554
[   19.380763][  T247] Call Trace:
[   19.380863][  T247]  <TASK>
[   19.380930][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.381064][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.381194][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.381296][  T247]  register_netdevice (net/core/dev.c:11488)
[   19.381431][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.381597][  T247]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   19.381736][  T247]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   19.381870][  T247]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   19.382003][  T247]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   19.382136][  T247]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   19.382268][  T247]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   19.382401][  T247]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   19.382536][  T247]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   19.382675][  T247]  vti_init_net (net/ipv4/ip_vti.c:517)
[   19.382815][  T247]  ops_init (net/core/net_namespace.c:137)
[   19.382915][  T247]  setup_net (net/core/net_namespace.c:446)
[   19.383014][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.383143][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.383274][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.383409][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   19.383542][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.383683][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.383818][  T247]  ksys_unshare (kernel/fork.c:3243)
[   19.383949][  T247]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.384080][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.384211][  T247]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.384342][  T247]  ? __ia32_sys_open (fs/open.c:1374)
[   19.384478][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.384612][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.384749][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.384880][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.385010][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.385139][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.385301][  T247] RIP: 0033:0x7fa50e5f6bcb
[   19.385440][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.385917][  T247] RSP: 002b:00007ffef5a8d528 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.386115][  T247] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa50e5f6bcb
[   19.386309][  T247] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.386510][  T247] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.386710][  T247] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffef5a8f750
[   19.386910][  T247] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffef5a90886
| [   19.390963][  T247] ------------[ cut here ]------------
| [   19.391097][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/247
| [   19.391321][  T247] Modules linked in: unix_diag
| [   19.391723][  T247] Tainted: [W]=WARN
[   19.391830][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.391993][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.392161][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.392630][  T247] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[   19.392799][  T247] RAX: 00000000ffffffa6 RBX: ff110000093e6040 RCX: 1ff400000011ef15
[   19.392994][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000093e60fc
[   19.393189][  T247] RBP: ff1100000f52c000 R08: 1fe220000127cc21 R09: ff1100000f118b80
[   19.393383][  T247] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.393578][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f52c000
[   19.393783][  T247] FS:  00007fa50e334840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   19.394014][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.394176][  T247] CR2: 00007f8d9f783c40 CR3: 0000000013d41002 CR4: 0000000000771ef0
[   19.394372][  T247] PKRU: 55555554
[   19.394472][  T247] Call Trace:
[   19.394569][  T247]  <TASK>
[   19.394642][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.394777][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.394907][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.395006][  T247]  register_netdevice (net/core/dev.c:11488)
[   19.395141][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.395302][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.395438][  T247]  register_netdev (net/core/dev.c:11552)
[   19.395566][  T247]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   19.395701][  T247]  ops_init (net/core/net_namespace.c:137)
[   19.395804][  T247]  setup_net (net/core/net_namespace.c:446)
[   19.395904][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.396035][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.396165][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.396296][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   19.396428][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.396560][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.396694][  T247]  ksys_unshare (kernel/fork.c:3243)
[   19.396830][  T247]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.396962][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.397092][  T247]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.397223][  T247]  ? __ia32_sys_open (fs/open.c:1374)
[   19.397357][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.397508][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.397644][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.397780][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.397909][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.398042][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.398205][  T247] RIP: 0033:0x7fa50e5f6bcb
[   19.398341][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.398816][  T247] RSP: 002b:00007ffef5a8d528 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.399013][  T247] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa50e5f6bcb
[   19.399207][  T247] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.399401][  T247] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.399604][  T247] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffef5a8f750
[   19.399806][  T247] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffef5a90886
| [   19.403863][  T247] ------------[ cut here ]------------
| [   19.404001][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/247
| [   19.404230][  T247] Modules linked in: unix_diag
| [   19.404633][  T247] Tainted: [W]=WARN
[   19.404736][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.404901][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.405074][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.405539][  T247] RSP: 0018:ffa00000008f7a68 EFLAGS: 00010286
[   19.405708][  T247] RAX: 00000000ffffffa6 RBX: ff11000010ede200 RCX: 1ff400000011ef13
[   19.405908][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010ede2bc
[   19.406101][  T247] RBP: ff11000008b31000 R08: 1fe22000021dbc59 R09: ff1100000f118b80
[   19.406296][  T247] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.406493][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b31000
[   19.406694][  T247] FS:  00007fa50e334840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   19.406929][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.407093][  T247] CR2: 00007f8d9f783c40 CR3: 0000000013d41002 CR4: 0000000000771ef0
[   19.407287][  T247] PKRU: 55555554
[   19.407383][  T247] Call Trace:
[   19.407482][  T247]  <TASK>
[   19.407548][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.407684][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.407818][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.407918][  T247]  register_netdevice (net/core/dev.c:11488)
[   19.408051][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.408216][  T247]  register_netdev (net/core/dev.c:11552)
[   19.408346][  T247]  sit_init_net (net/ipv6/sit.c:1860)
[   19.408482][  T247]  ops_init (net/core/net_namespace.c:137)
[   19.408590][  T247]  setup_net (net/core/net_namespace.c:446)
[   19.408690][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.408824][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.408955][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.409088][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   19.409221][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.409354][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.409487][  T247]  ksys_unshare (kernel/fork.c:3243)
[   19.409622][  T247]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.409760][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.409890][  T247]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.410022][  T247]  ? __ia32_sys_open (fs/open.c:1374)
[   19.410153][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.410283][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.410418][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.410548][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.410685][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.410823][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.410985][  T247] RIP: 0033:0x7fa50e5f6bcb
[   19.411123][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.411595][  T247] RSP: 002b:00007ffef5a8d528 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.411797][  T247] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa50e5f6bcb
[   19.411992][  T247] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.412188][  T247] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.412387][  T247] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffef5a8f750
[   19.412588][  T247] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffef5a90886
| [   19.416862][  T247] ------------[ cut here ]------------
| [   19.416996][  T247] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/247
| [   19.417220][  T247] Modules linked in: unix_diag
| [   19.417622][  T247] Tainted: [W]=WARN
[   19.417722][  T247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.417891][  T247] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.418059][  T247] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.418526][  T247] RSP: 0018:ffa00000008f7a78 EFLAGS: 00010286
[   19.418696][  T247] RAX: 00000000ffffffa6 RBX: ff11000010edf700 RCX: 1ff400000011ef15
[   19.418895][  T247] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010edf7bc
[   19.419089][  T247] RBP: ff1100000a964000 R08: 1fe22000021dbef9 R09: ff1100000f118b80
[   19.419284][  T247] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   19.419482][  T247] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a964000
[   19.419683][  T247] FS:  00007fa50e334840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   19.419917][  T247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.420081][  T247] CR2: 00007f8d9f783c40 CR3: 0000000013d41002 CR4: 0000000000771ef0
[   19.420278][  T247] PKRU: 55555554
[   19.420375][  T247] Call Trace:
[   19.420475][  T247]  <TASK>
[   19.420542][  T247]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.420702][  T247]  ? notifier_call_chain (kernel/notifier.c:85)
[   19.420843][  T247]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.420943][  T247]  register_netdevice (net/core/dev.c:11488)
[   19.421075][  T247]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   19.421237][  T247]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.421370][  T247]  register_netdev (net/core/dev.c:11552)
[   19.421504][  T247]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   19.421643][  T247]  ops_init (net/core/net_namespace.c:137)
[   19.421748][  T247]  setup_net (net/core/net_namespace.c:446)
[   19.421847][  T247]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   19.421975][  T247]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   19.422104][  T247]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   19.422238][  T247]  copy_net_ns (net/core/net_namespace.c:579)
[   19.422369][  T247]  create_new_namespaces (kernel/nsproxy.c:132)
[   19.422506][  T247]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   19.422643][  T247]  ksys_unshare (kernel/fork.c:3243)
[   19.422779][  T247]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   19.422910][  T247]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   19.423042][  T247]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   19.423173][  T247]  ? __ia32_sys_open (fs/open.c:1374)
[   19.423305][  T247]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   19.423439][  T247]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   19.423568][  T247]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.423703][  T247]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.423838][  T247]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.423971][  T247]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.424141][  T247] RIP: 0033:0x7fa50e5f6bcb
[   19.424277][  T247] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.424748][  T247] RSP: 002b:00007ffef5a8d528 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   19.424944][  T247] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fa50e5f6bcb
[   19.425141][  T247] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   19.425335][  T247] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   19.425532][  T247] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffef5a8f750
[   19.425734][  T247] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffef5a90886
| [   19.462028][  T248] ------------[ cut here ]------------
| [   19.462182][  T248] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/248
| [   19.462414][  T248] Modules linked in: unix_diag
| [   19.462834][  T248] Tainted: [W]=WARN
[   19.462932][  T248] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.463097][  T248] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   19.463271][  T248] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   19.463747][  T248] RSP: 0018:ffa0000000747020 EFLAGS: 00010286
[   19.463911][  T248] RAX: 00000000ffffffa6 RBX: ff1100000e062900 RCX: 1ff40000000e8dca
[   19.464103][  T248] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e0629bc
[   19.464294][  T248] RBP: ff11000008c29000 R08: 1fe2200001c0c539 R09: ff1100000f292e58
[   19.464492][  T248] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   19.464787][  T248] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   19.464982][  T248] FS:  00007f4ab5dee840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   19.465230][  T248] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.465462][  T248] CR2: 000000001dbf0988 CR3: 00000000149a1002 CR4: 0000000000771ef0
[   19.465713][  T248] PKRU: 55555554
[   19.465814][  T248] Call Trace:
[   19.465909][  T248]  <TASK>
[   19.465977][  T248]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   19.466108][  T248]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   19.466208][  T248]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   19.466337][  T248]  __dev_notify_flags (net/core/dev.c:9787)
[   19.466473][  T248]  ? netif_change_name (net/core/dev.c:1495)
[   19.466679][  T248]  ? __dev_change_flags (net/core/dev.c:9752)
[   19.466814][  T248]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   19.466943][  T248]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.467073][  T248]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   19.467205][  T248]  netif_change_flags (net/core/dev.c:9820)
[   19.467336][  T248]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   19.467472][  T248]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   19.467681][  T248]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   19.467824][  T248]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   19.467987][  T248]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.468116][  T248]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.468244][  T248]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   19.468375][  T248]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.468510][  T248]  ? __kernel_text_address (kernel/extable.c:79)
[   19.468716][  T248]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.468855][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.468984][  T248]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   19.469115][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.469246][  T248]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   19.469375][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.469508][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.469737][  T248]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   19.469869][  T248]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   19.470002][  T248]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   19.470131][  T248]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   19.470262][  T248]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   19.470393][  T248]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   19.470550][  T248]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   19.470701][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.470835][  T248]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.470965][  T248]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.471094][  T248]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   19.471223][  T248]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.471354][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.471484][  T248]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.471621][  T248]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.471755][  T248]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   19.471887][  T248]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   19.472017][  T248]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   19.472146][  T248]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.472275][  T248]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.472404][  T248]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.472540][  T248]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   19.472675][  T248]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   19.472810][  T248]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   19.472939][  T248]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.473067][  T248]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.473200][  T248]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   19.473329][  T248]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   19.473464][  T248]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.473600][  T248]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.473736][  T248]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   19.473866][  T248]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   19.474000][  T248]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   19.474130][  T248]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   19.474264][  T248]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   19.474395][  T248]  ? copy_msghdr_from_user (net/socket.c:2635)
[   19.474529][  T248]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   19.474698][  T248]  ? move_addr_to_kernel (net/socket.c:258)
[   19.474835][  T248]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   19.474966][  T248]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   19.475098][  T248]  ___sys_sendmsg (net/socket.c:2752)
[   19.475229][  T248]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   19.475389][  T248]  ? copy_msghdr_from_user (net/socket.c:2603)
[   19.475533][  T248]  __sys_sendmsg (net/socket.c:2784)
[   19.475669][  T248]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   19.475802][  T248]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   19.475966][  T248]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.476094][  T248]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   19.476224][  T248]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   19.476354][  T248]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   19.476483][  T248]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   19.476619][  T248]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.476789][  T248] RIP: 0033:0x7f4ab602808e
[   19.476925][  T248] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   19.477385][  T248] RSP: 002b:00007fffc2552510 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.477588][  T248] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4ab602808e
[   19.477786][  T248] RDX: 0000000000000000 RSI: 00007fffc25525c0 RDI: 0000000000000005
[   19.477978][  T248] RBP: 00007fffc2552520 R08: 0000000000000000 R09: 0000000000000000
[   19.478170][  T248] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d65c
[   19.478365][  T248] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffc2552c90
| [   22.684669][   T68] ------------[ cut here ]------------
| [   22.684843][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   22.685084][   T68] Modules linked in: unix_diag
| [   22.685486][   T68] Tainted: [W]=WARN
[   22.685578][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.685741][   T68] Workqueue: netns cleanup_net
[   22.685866][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.686027][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.686450][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   22.686607][   T68] RAX: 00000000ffffffa6 RBX: ff11000010f8a740 RCX: 1ff4000000092eed
[   22.686791][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010f8a7fc
[   22.686984][   T68] RBP: ff1100000a964000 R08: 1fe22000021f1501 R09: ff11000008e42ed0
[   22.687158][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   22.687337][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   22.687532][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   22.687749][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.687899][   T68] CR2: 00007f1695d8c000 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   22.688079][   T68] PKRU: 55555554
[   22.688168][   T68] Call Trace:
[   22.688257][   T68]  <TASK>
[   22.688321][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   22.688480][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   22.688634][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   22.688763][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   22.688887][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.689008][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   22.689128][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   22.689249][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   22.689368][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   22.689496][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.689629][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   22.689753][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   22.689874][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   22.689997][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.690115][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.690241][   T68]  process_one_work (kernel/workqueue.c:3314)
[   22.690366][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   22.690489][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.690621][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   22.690748][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.690868][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   22.690990][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.691109][   T68]  kthread (kernel/kthread.c:436)
[   22.691201][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.691351][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.691484][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.691609][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   22.691762][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.691881][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.692001][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   22.694507][   T68] ------------[ cut here ]------------
| [   22.694637][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   22.694878][   T68] Modules linked in: unix_diag
| [   22.695273][   T68] Tainted: [W]=WARN
[   22.695366][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.695517][   T68] Workqueue: netns cleanup_net
[   22.695647][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.695807][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.696238][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   22.696388][   T68] RAX: 00000000ffffffa6 RBX: ff11000010f8ae40 RCX: 1ff4000000092eed
[   22.696572][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010f8aefc
[   22.696758][   T68] RBP: ff11000008b31000 R08: 1fe22000021f15e1 R09: ff11000008e42ed0
[   22.696933][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   22.697116][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   22.697294][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   22.697504][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.697658][   T68] CR2: 00007f1695d8c000 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   22.697843][   T68] PKRU: 55555554
[   22.697934][   T68] Call Trace:
[   22.698025][   T68]  <TASK>
[   22.698088][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   22.698241][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   22.698388][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   22.698507][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   22.698633][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.698759][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   22.698878][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   22.698999][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   22.699119][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   22.699237][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.699361][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   22.699485][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   22.699609][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   22.699728][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.699851][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.699974][   T68]  process_one_work (kernel/workqueue.c:3314)
[   22.700171][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   22.700290][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.700416][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   22.700536][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.700731][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   22.700859][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.700976][   T68]  kthread (kernel/kthread.c:436)
[   22.701065][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.701355][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.701476][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.701599][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   22.701822][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.701941][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.702058][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   22.704595][   T68] ------------[ cut here ]------------
| [   22.704790][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   22.705031][   T68] Modules linked in: unix_diag
| [   22.705430][   T68] Tainted: [W]=WARN
[   22.705519][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.705673][   T68] Workqueue: netns cleanup_net
[   22.705804][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.705957][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.706379][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   22.706614][   T68] RAX: 00000000ffffffa6 RBX: ff11000010f8be00 RCX: 1ff4000000092eed
[   22.706802][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010f8bebc
[   22.706978][   T68] RBP: ff1100000f52c000 R08: 1fe22000021f17d9 R09: ff11000008e42ed0
[   22.707160][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   22.707336][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   22.707595][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   22.707809][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.708031][   T68] CR2: 00007f1695d8c000 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   22.708210][   T68] PKRU: 55555554
[   22.708299][   T68] Call Trace:
[   22.708388][   T68]  <TASK>
[   22.708524][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   22.708685][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   22.708837][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   22.708959][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   22.710001][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.710143][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   22.710264][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   22.710384][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   22.710600][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   22.710717][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.710843][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   22.710968][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   22.711158][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   22.711275][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.711392][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.711517][   T68]  process_one_work (kernel/workqueue.c:3314)
[   22.711717][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   22.711838][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.711958][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   22.712078][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.712268][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   22.712387][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.712505][   T68]  kthread (kernel/kthread.c:436)
[   22.712598][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.712828][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.713018][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.713136][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   22.713361][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.713488][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.713617][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   22.716163][   T68] ------------[ cut here ]------------
| [   22.716288][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   22.716523][   T68] Modules linked in: unix_diag
| [   22.716930][   T68] Tainted: [W]=WARN
[   22.717022][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.717168][   T68] Workqueue: netns cleanup_net
[   22.717291][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.717447][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.717887][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   22.718039][   T68] RAX: 00000000ffffffa6 RBX: ff11000010f8b8c0 RCX: 1ff4000000092eed
[   22.718218][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010f8b97c
[   22.718393][   T68] RBP: ff110000059fc000 R08: 1fe22000021f1731 R09: ff11000008e42ed0
[   22.718571][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   22.718757][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   22.718932][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   22.719141][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.719290][   T68] CR2: 00007f1695d8c000 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   22.719471][   T68] PKRU: 55555554
[   22.719560][   T68] Call Trace:
[   22.719652][   T68]  <TASK>
[   22.719714][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   22.719867][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   22.720013][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   22.720129][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   22.720249][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.720366][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   22.720497][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   22.720623][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   22.720747][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   22.720863][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.720982][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   22.721104][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   22.721221][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   22.721340][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.721462][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.721591][   T68]  process_one_work (kernel/workqueue.c:3314)
[   22.721777][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   22.721896][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.722019][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   22.722138][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.722256][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   22.722374][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.722494][   T68]  kthread (kernel/kthread.c:436)
[   22.722588][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.722732][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.722857][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.722974][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   22.723124][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.723242][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.723360][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   22.725562][   T68] ------------[ cut here ]------------
| [   22.725757][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   22.725991][   T68] Modules linked in: unix_diag
| [   22.726464][   T68] Tainted: [W]=WARN
[   22.726552][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.726705][   T68] Workqueue: netns cleanup_net
[   22.726905][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.727058][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.727550][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   22.727703][   T68] RAX: 00000000ffffffa6 RBX: ff11000010f8ba80 RCX: 1ff4000000092eed
[   22.727883][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010f8bb3c
[   22.728056][   T68] RBP: ff11000008144000 R08: 1fe22000021f1769 R09: ff11000008e42ed0
[   22.728235][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   22.728414][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   22.728596][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   22.728808][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.728955][   T68] CR2: 00007f1695d8c000 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   22.729131][   T68] PKRU: 55555554
[   22.729223][   T68] Call Trace:
[   22.729310][   T68]  <TASK>
[   22.729371][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   22.729522][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   22.729671][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   22.729795][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   22.729913][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.730028][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   22.730145][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   22.730263][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   22.730383][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   22.730505][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.730628][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   22.730750][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   22.730866][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   22.730982][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.731098][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.731215][   T68]  process_one_work (kernel/workqueue.c:3314)
[   22.731339][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   22.731458][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.731587][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   22.731706][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.731828][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   22.731946][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.732065][   T68]  kthread (kernel/kthread.c:436)
[   22.732152][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.732295][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.732416][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.732535][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   22.732688][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.732810][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.732927][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   22.755649][   T68] ------------[ cut here ]------------
| [   22.755786][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   22.756032][   T68] Modules linked in: unix_diag
| [   22.756454][   T68] Tainted: [W]=WARN
[   22.756547][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.756716][   T68] Workqueue: netns cleanup_net
[   22.756847][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.757009][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.757445][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   22.757607][   T68] RAX: 00000000ffffffa6 RBX: ff11000001f70e40 RCX: 1ff4000000092eaf
[   22.757795][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000001f70efc
[   22.757977][   T68] RBP: ff11000008c29000 R08: 1fe22000003ee1e1 R09: ff11000008e42ed0
[   22.758156][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   22.758343][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   22.758530][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   22.758754][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.758906][   T68] CR2: 00007f1695d8c000 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   22.759091][   T68] PKRU: 55555554
[   22.759184][   T68] Call Trace:
[   22.759276][   T68]  <TASK>
[   22.759339][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.759470][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.759564][   T68]  netif_close_many (net/core/dev.c:1804)
[   22.759692][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.759820][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.759940][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.760061][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   22.760182][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   22.760334][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   22.760493][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   22.760621][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.760749][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   22.760871][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   22.761025][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   22.761149][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   22.761271][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   22.761394][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   22.761519][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   22.761649][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   22.761778][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   22.761898][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.762022][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   22.762144][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   22.762265][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   22.762390][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.762514][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.762646][   T68]  process_one_work (kernel/workqueue.c:3314)
[   22.762776][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   22.762898][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.763025][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   22.763147][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.763271][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   22.763394][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.763520][   T68]  kthread (kernel/kthread.c:436)
[   22.763619][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.763780][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.763903][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.764027][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   22.764182][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.764304][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.764440][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   22.766837][   T68] ------------[ cut here ]------------
| [   22.766970][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   22.767213][   T68] Modules linked in: unix_diag
| [   22.768074][   T68] Tainted: [W]=WARN
[   22.768173][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.768327][   T68] Workqueue: netns cleanup_net
[   22.768503][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.768716][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.769159][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   22.769313][   T68] RAX: 00000000ffffffa6 RBX: ff11000012439700 RCX: 1ff4000000092ed5
[   22.769498][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000124397bc
[   22.769727][   T68] RBP: ff11000008c29000 R08: 1fe22000024872f9 R09: ff11000008e42ed0
[   22.769914][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   22.770097][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   22.770280][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   22.770497][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.770699][   T68] CR2: 00007f1695d8c000 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   22.770890][   T68] PKRU: 55555554
[   22.770980][   T68] Call Trace:
[   22.771080][   T68]  <TASK>
[   22.771145][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   22.771300][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   22.771464][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   22.771639][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   22.771771][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   22.771895][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   22.772017][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   22.772142][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   22.772268][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   22.772390][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.772519][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   22.772692][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   22.772821][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   22.772947][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.773069][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.773194][   T68]  process_one_work (kernel/workqueue.c:3314)
[   22.773321][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   22.773447][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.773573][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   22.773754][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.773874][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   22.773996][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   22.774115][   T68]  kthread (kernel/kthread.c:436)
[   22.774203][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.774351][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.774474][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.774642][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   22.774796][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.774915][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   22.775034][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   22.805058][  T264] ------------[ cut here ]------------
| [   22.805240][  T264] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/264
| [   22.805520][  T264] Modules linked in: unix_diag
| [   22.806040][  T264] Tainted: [W]=WARN
[   22.806184][  T264] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.806393][  T264] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.806631][  T264] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.807150][  T264] RSP: 0018:ffa00000007d7a80 EFLAGS: 00010286
[   22.807359][  T264] RAX: 00000000ffffffa6 RBX: ff11000008f43540 RCX: 1ff40000000faf16
[   22.807620][  T264] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f435fc
[   22.807875][  T264] RBP: ff11000008b61000 R08: 1fe22000011e86c1 R09: ff11000005330b80
[   22.808114][  T264] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   22.808353][  T264] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b61000
[   22.808616][  T264] FS:  00007fdfbd1c0840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   22.808903][  T264] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.809115][  T264] CR2: 00007fdfbd3c7430 CR3: 0000000013d5d006 CR4: 0000000000771ef0
[   22.809358][  T264] PKRU: 55555554
[   22.809511][  T264] Call Trace:
[   22.809667][  T264]  <TASK>
[   22.809789][  T264]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.809967][  T264]  ? notifier_call_chain (kernel/notifier.c:85)
[   22.810148][  T264]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.810295][  T264]  register_netdevice (net/core/dev.c:11488)
[   22.810486][  T264]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   22.810711][  T264]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   22.810898][  T264]  register_netdev (net/core/dev.c:11552)
[   22.811076][  T264]  loopback_net_init (drivers/net/loopback.c:218)
[   22.811256][  T264]  ops_init (net/core/net_namespace.c:137)
[   22.811404][  T264]  setup_net (net/core/net_namespace.c:446)
[   22.811561][  T264]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   22.811757][  T264]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   22.811938][  T264]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   22.812118][  T264]  copy_net_ns (net/core/net_namespace.c:579)
[   22.812297][  T264]  create_new_namespaces (kernel/nsproxy.c:132)
[   22.812488][  T264]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   22.812683][  T264]  ksys_unshare (kernel/fork.c:3243)
[   22.812873][  T264]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   22.813054][  T264]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   22.813231][  T264]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   22.813414][  T264]  ? __ia32_sys_open (fs/open.c:1374)
[   22.813612][  T264]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   22.813799][  T264]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   22.813980][  T264]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.814163][  T264]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.814340][  T264]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.814526][  T264]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.814756][  T264] RIP: 0033:0x7fdfbd482bcb
[   22.814943][  T264] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   22.815456][  T264] RSP: 002b:00007fffa9e674c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   22.815714][  T264] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdfbd482bcb
[   22.815962][  T264] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   22.816201][  T264] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   22.816452][  T264] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffa9e696f0
[   22.816707][  T264] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffa9e6a886
| [   22.820952][  T264] ------------[ cut here ]------------
| [   22.821129][  T264] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/264
| [   22.821401][  T264] Modules linked in: unix_diag
| [   22.821915][  T264] Tainted: [W]=WARN
[   22.822061][  T264] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.822272][  T264] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.822494][  T264] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.823019][  T264] RSP: 0018:ffa00000007d7918 EFLAGS: 00010286
[   22.823233][  T264] RAX: 00000000ffffffa6 RBX: ff11000008f43e00 RCX: 1ff40000000faee9
[   22.823482][  T264] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f43ebc
[   22.823732][  T264] RBP: ff11000008b49000 R08: 1fe22000011e87d9 R09: ff11000005330b80
[   22.823980][  T264] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   22.824220][  T264] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b49000
[   22.824469][  T264] FS:  00007fdfbd1c0840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   22.824761][  T264] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.824972][  T264] CR2: 00007fdfbd3c7430 CR3: 0000000013d5d006 CR4: 0000000000771ef0
[   22.825213][  T264] PKRU: 55555554
[   22.825363][  T264] Call Trace:
[   22.825516][  T264]  <TASK>
[   22.825644][  T264]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.825831][  T264]  ? notifier_call_chain (kernel/notifier.c:85)
[   22.826011][  T264]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.826157][  T264]  register_netdevice (net/core/dev.c:11488)
[   22.826335][  T264]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   22.826552][  T264]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   22.826754][  T264]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   22.826934][  T264]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   22.827111][  T264]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   22.827290][  T264]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   22.827479][  T264]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   22.827668][  T264]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   22.827854][  T264]  ops_init (net/core/net_namespace.c:137)
[   22.828004][  T264]  setup_net (net/core/net_namespace.c:446)
[   22.828151][  T264]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   22.828325][  T264]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   22.828511][  T264]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   22.828699][  T264]  copy_net_ns (net/core/net_namespace.c:579)
[   22.828885][  T264]  create_new_namespaces (kernel/nsproxy.c:132)
[   22.829073][  T264]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   22.829252][  T264]  ksys_unshare (kernel/fork.c:3243)
[   22.829431][  T264]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   22.829619][  T264]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   22.829806][  T264]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   22.829983][  T264]  ? __ia32_sys_open (fs/open.c:1374)
[   22.830162][  T264]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   22.830338][  T264]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   22.830521][  T264]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.830716][  T264]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.830903][  T264]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.831080][  T264]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.831286][  T264] RIP: 0033:0x7fdfbd482bcb
[   22.831476][  T264] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   22.832005][  T264] RSP: 002b:00007fffa9e674c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   22.832247][  T264] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdfbd482bcb
[   22.832493][  T264] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   22.832752][  T264] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   22.832995][  T264] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffa9e696f0
[   22.833234][  T264] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffa9e6a886
| [   22.843189][  T264] ------------[ cut here ]------------
| [   22.843372][  T264] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/264
| [   22.843663][  T264] Modules linked in: unix_diag
| [   22.844162][  T264] Tainted: [W]=WARN
[   22.844308][  T264] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.844528][  T264] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.844765][  T264] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.845274][  T264] RSP: 0018:ffa00000007d78f8 EFLAGS: 00010286
[   22.845496][  T264] RAX: 00000000ffffffa6 RBX: ff110000140c0e40 RCX: 1ff40000000faee5
[   22.845758][  T264] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000140c0efc
[   22.846001][  T264] RBP: ff1100000a83c000 R08: 1fe22000028181e1 R09: ff11000005330b80
[   22.846241][  T264] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   22.846491][  T264] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a83c000
[   22.846758][  T264] FS:  00007fdfbd1c0840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   22.847037][  T264] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.847249][  T264] CR2: 00007fdfbd3c7430 CR3: 0000000013d5d006 CR4: 0000000000771ef0
[   22.847500][  T264] PKRU: 55555554
[   22.847661][  T264] Call Trace:
[   22.847816][  T264]  <TASK>
[   22.847931][  T264]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.848111][  T264]  ? notifier_call_chain (kernel/notifier.c:85)
[   22.848288][  T264]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.848437][  T264]  register_netdevice (net/core/dev.c:11488)
[   22.848631][  T264]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   22.848853][  T264]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   22.849036][  T264]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   22.849213][  T264]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   22.849389][  T264]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   22.849574][  T264]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   22.849775][  T264]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   22.849955][  T264]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   22.850134][  T264]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   22.850312][  T264]  vti_init_net (net/ipv4/ip_vti.c:517)
[   22.850500][  T264]  ops_init (net/core/net_namespace.c:137)
[   22.850661][  T264]  setup_net (net/core/net_namespace.c:446)
[   22.850815][  T264]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   22.850992][  T264]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   22.851172][  T264]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   22.851351][  T264]  copy_net_ns (net/core/net_namespace.c:579)
[   22.851536][  T264]  create_new_namespaces (kernel/nsproxy.c:132)
[   22.851732][  T264]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   22.851921][  T264]  ksys_unshare (kernel/fork.c:3243)
[   22.852101][  T264]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   22.852280][  T264]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   22.852465][  T264]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   22.852658][  T264]  ? __ia32_sys_open (fs/open.c:1374)
[   22.852848][  T264]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   22.853032][  T264]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   22.853210][  T264]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.853404][  T264]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.853598][  T264]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.853784][  T264]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.853993][  T264] RIP: 0033:0x7fdfbd482bcb
[   22.854176][  T264] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   22.854705][  T264] RSP: 002b:00007fffa9e674c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   22.854951][  T264] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdfbd482bcb
[   22.855193][  T264] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   22.855438][  T264] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   22.855694][  T264] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffa9e696f0
[   22.855944][  T264] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffa9e6a886
| [   22.860472][  T264] ------------[ cut here ]------------
| [   22.860651][  T264] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/264
| [   22.860931][  T264] Modules linked in: unix_diag
| [   22.861420][  T264] Tainted: [W]=WARN
[   22.861568][  T264] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.861796][  T264] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.862011][  T264] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.862523][  T264] RSP: 0018:ffa00000007d7a78 EFLAGS: 00010286
[   22.862752][  T264] RAX: 00000000ffffffa6 RBX: ff110000140c1c40 RCX: 1ff40000000faf15
[   22.862991][  T264] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000140c1cfc
[   22.863229][  T264] RBP: ff11000007859000 R08: 1fe22000028183a1 R09: ff11000005330b80
[   22.863481][  T264] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   22.863731][  T264] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007859000
[   22.863995][  T264] FS:  00007fdfbd1c0840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   22.864267][  T264] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.864488][  T264] CR2: 00007fdfbd3c7430 CR3: 0000000013d5d006 CR4: 0000000000771ef0
[   22.864751][  T264] PKRU: 55555554
[   22.864895][  T264] Call Trace:
[   22.865040][  T264]  <TASK>
[   22.865153][  T264]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.865330][  T264]  ? notifier_call_chain (kernel/notifier.c:85)
[   22.865531][  T264]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.865692][  T264]  register_netdevice (net/core/dev.c:11488)
[   22.865883][  T264]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   22.866089][  T264]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.866268][  T264]  register_netdev (net/core/dev.c:11552)
[   22.866453][  T264]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   22.866646][  T264]  ops_init (net/core/net_namespace.c:137)
[   22.866802][  T264]  setup_net (net/core/net_namespace.c:446)
[   22.866947][  T264]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   22.867124][  T264]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   22.867300][  T264]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   22.867486][  T264]  copy_net_ns (net/core/net_namespace.c:579)
[   22.867677][  T264]  create_new_namespaces (kernel/nsproxy.c:132)
[   22.867865][  T264]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   22.868042][  T264]  ksys_unshare (kernel/fork.c:3243)
[   22.868220][  T264]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   22.868398][  T264]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   22.868594][  T264]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   22.868781][  T264]  ? __ia32_sys_open (fs/open.c:1374)
[   22.868959][  T264]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   22.869134][  T264]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   22.869310][  T264]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.869492][  T264]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.869684][  T264]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.869869][  T264]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.870076][  T264] RIP: 0033:0x7fdfbd482bcb
[   22.870256][  T264] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   22.870784][  T264] RSP: 002b:00007fffa9e674c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   22.871028][  T264] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdfbd482bcb
[   22.871264][  T264] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   22.871511][  T264] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   22.871766][  T264] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffa9e696f0
[   22.872007][  T264] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffa9e6a886
| [   22.876471][  T264] ------------[ cut here ]------------
| [   22.876653][  T264] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/264
| [   22.876931][  T264] Modules linked in: unix_diag
| [   22.877418][  T264] Tainted: [W]=WARN
[   22.877566][  T264] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.877795][  T264] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.878012][  T264] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.878521][  T264] RSP: 0018:ffa00000007d7a68 EFLAGS: 00010286
[   22.878752][  T264] RAX: 00000000ffffffa6 RBX: ff1100000b1ccac0 RCX: 1ff40000000faf13
[   22.878996][  T264] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b1ccb7c
[   22.879235][  T264] RBP: ff11000009321000 R08: 1fe2200001639971 R09: ff11000005330b80
[   22.879483][  T264] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   22.879734][  T264] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009321000
[   22.879986][  T264] FS:  00007fdfbd1c0840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   22.880259][  T264] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.880477][  T264] CR2: 00007fdfbd3c7430 CR3: 0000000013d5d006 CR4: 0000000000771ef0
[   22.880728][  T264] PKRU: 55555554
[   22.880882][  T264] Call Trace:
[   22.881028][  T264]  <TASK>
[   22.881144][  T264]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.881321][  T264]  ? notifier_call_chain (kernel/notifier.c:85)
[   22.881505][  T264]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.881665][  T264]  register_netdevice (net/core/dev.c:11488)
[   22.881852][  T264]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   22.882066][  T264]  register_netdev (net/core/dev.c:11552)
[   22.882244][  T264]  sit_init_net (net/ipv6/sit.c:1860)
[   22.882429][  T264]  ops_init (net/core/net_namespace.c:137)
[   22.882576][  T264]  setup_net (net/core/net_namespace.c:446)
[   22.882735][  T264]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   22.882918][  T264]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   22.883096][  T264]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   22.883274][  T264]  copy_net_ns (net/core/net_namespace.c:579)
[   22.883458][  T264]  create_new_namespaces (kernel/nsproxy.c:132)
[   22.883655][  T264]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   22.883841][  T264]  ksys_unshare (kernel/fork.c:3243)
[   22.884018][  T264]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   22.884195][  T264]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   22.884372][  T264]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   22.884557][  T264]  ? __ia32_sys_open (fs/open.c:1374)
[   22.884756][  T264]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   22.884933][  T264]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   22.885113][  T264]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.885288][  T264]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.885471][  T264]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.885661][  T264]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.885877][  T264] RIP: 0033:0x7fdfbd482bcb
[   22.886060][  T264] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   22.886573][  T264] RSP: 002b:00007fffa9e674c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   22.886838][  T264] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdfbd482bcb
[   22.887075][  T264] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   22.887316][  T264] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   22.887562][  T264] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffa9e696f0
[   22.887825][  T264] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffa9e6a886
| [   22.892457][  T264] ------------[ cut here ]------------
| [   22.892637][  T264] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/264
| [   22.892910][  T264] Modules linked in: unix_diag
| [   22.893398][  T264] Tainted: [W]=WARN
[   22.893551][  T264] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.893778][  T264] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.893997][  T264] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.894514][  T264] RSP: 0018:ffa00000007d7a78 EFLAGS: 00010286
[   22.894747][  T264] RAX: 00000000ffffffa6 RBX: ff1100001275a900 RCX: 1ff40000000faf15
[   22.894988][  T264] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001275a9bc
[   22.895227][  T264] RBP: ff1100000a8fc000 R08: 1fe22000024eb539 R09: ff11000005330b80
[   22.895477][  T264] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   22.895727][  T264] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a8fc000
[   22.895978][  T264] FS:  00007fdfbd1c0840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   22.896253][  T264] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.896470][  T264] CR2: 00007fdfbd3c7430 CR3: 0000000013d5d006 CR4: 0000000000771ef0
[   22.896728][  T264] PKRU: 55555554
[   22.896881][  T264] Call Trace:
[   22.897025][  T264]  <TASK>
[   22.897139][  T264]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.897315][  T264]  ? notifier_call_chain (kernel/notifier.c:85)
[   22.897497][  T264]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.897658][  T264]  register_netdevice (net/core/dev.c:11488)
[   22.897851][  T264]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   22.898060][  T264]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.898241][  T264]  register_netdev (net/core/dev.c:11552)
[   22.898421][  T264]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   22.898612][  T264]  ops_init (net/core/net_namespace.c:137)
[   22.898767][  T264]  setup_net (net/core/net_namespace.c:446)
[   22.898912][  T264]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   22.899087][  T264]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   22.899268][  T264]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   22.899453][  T264]  copy_net_ns (net/core/net_namespace.c:579)
[   22.899646][  T264]  create_new_namespaces (kernel/nsproxy.c:132)
[   22.899833][  T264]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   22.900012][  T264]  ksys_unshare (kernel/fork.c:3243)
[   22.900191][  T264]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   22.900371][  T264]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   22.900554][  T264]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   22.900751][  T264]  ? __ia32_sys_open (fs/open.c:1374)
[   22.900931][  T264]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   22.901107][  T264]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   22.901283][  T264]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.901466][  T264]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.901657][  T264]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.901846][  T264]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.902053][  T264] RIP: 0033:0x7fdfbd482bcb
[   22.902236][  T264] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   22.902768][  T264] RSP: 002b:00007fffa9e674c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   22.903014][  T264] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fdfbd482bcb
[   22.903254][  T264] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   22.903500][  T264] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   22.903761][  T264] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffa9e696f0
[   22.904006][  T264] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffa9e6a886
| [   22.932216][  T265] ------------[ cut here ]------------
| [   22.932361][  T265] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/265
| [   22.932598][  T265] Modules linked in: unix_diag
| [   22.933005][  T265] Tainted: [W]=WARN
[   22.933102][  T265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.933264][  T265] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   22.933435][  T265] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   22.933911][  T265] RSP: 0018:ffa0000000807020 EFLAGS: 00010286
[   22.934075][  T265] RAX: 00000000ffffffa6 RBX: ff11000012438e40 RCX: 1ff4000000100dca
[   22.934269][  T265] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012438efc
[   22.934466][  T265] RBP: ff11000008b61000 R08: 1fe22000024871e1 R09: ff11000009b55158
[   22.934664][  T265] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   22.934864][  T265] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   22.935058][  T265] FS:  00007f5451053840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   22.935285][  T265] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.935453][  T265] CR2: 0000000004f85988 CR3: 000000000a397006 CR4: 0000000000771ef0
[   22.935655][  T265] PKRU: 55555554
[   22.935755][  T265] Call Trace:
[   22.935853][  T265]  <TASK>
[   22.935920][  T265]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   22.936052][  T265]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   22.936150][  T265]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   22.936280][  T265]  __dev_notify_flags (net/core/dev.c:9787)
[   22.936416][  T265]  ? netif_change_name (net/core/dev.c:1495)
[   22.936547][  T265]  ? __dev_change_flags (net/core/dev.c:9752)
[   22.937294][  T265]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   22.937429][  T265]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.937558][  T265]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   22.937693][  T265]  netif_change_flags (net/core/dev.c:9820)
[   22.937832][  T265]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   22.937962][  T265]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   22.938094][  T265]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   22.938226][  T265]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   22.938388][  T265]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.938519][  T265]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.938655][  T265]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.938787][  T265]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.938918][  T265]  ? __kernel_text_address (kernel/extable.c:79)
[   22.939047][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.939179][  T265]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.939308][  T265]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.939442][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.939573][  T265]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   22.939712][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.939845][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.939975][  T265]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   22.940106][  T265]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   22.940237][  T265]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   22.940366][  T265]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   22.940501][  T265]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   22.940638][  T265]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   22.940778][  T265]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   22.940910][  T265]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.941038][  T265]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.941166][  T265]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.941295][  T265]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   22.941426][  T265]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.941558][  T265]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.941691][  T265]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.941826][  T265]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.941956][  T265]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   22.942087][  T265]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   22.942217][  T265]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   22.942345][  T265]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.942478][  T265]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.942613][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.942752][  T265]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   22.942881][  T265]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   22.943011][  T265]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   22.943140][  T265]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.943271][  T265]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.943406][  T265]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.943537][  T265]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.943675][  T265]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.943812][  T265]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.943943][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   22.944074][  T265]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   22.944239][  T265]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   22.944372][  T265]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   22.944515][  T265]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   22.944652][  T265]  ? copy_msghdr_from_user (net/socket.c:2635)
[   22.944788][  T265]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   22.944948][  T265]  ? move_addr_to_kernel (net/socket.c:258)
[   22.945079][  T265]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.945209][  T265]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   22.945341][  T265]  ___sys_sendmsg (net/socket.c:2752)
[   22.945472][  T265]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   22.945640][  T265]  ? copy_msghdr_from_user (net/socket.c:2603)
[   22.945790][  T265]  __sys_sendmsg (net/socket.c:2784)
[   22.945920][  T265]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   22.946048][  T265]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   22.946213][  T265]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.946343][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   22.946479][  T265]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   22.946614][  T265]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   22.946748][  T265]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   22.946881][  T265]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.947042][  T265] RIP: 0033:0x7f545128d08e
[   22.947177][  T265] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.947643][  T265] RSP: 002b:00007ffe0363d9a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.947845][  T265] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f545128d08e
[   22.948037][  T265] RDX: 0000000000000000 RSI: 00007ffe0363da50 RDI: 0000000000000005
[   22.948229][  T265] RBP: 00007ffe0363d9b0 R08: 0000000000000000 R09: 0000000000000000
[   22.948424][  T265] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d660
[   22.948627][  T265] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe0363e120
| [   26.165943][   T68] ------------[ cut here ]------------
| [   26.166113][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   26.166356][   T68] Modules linked in: unix_diag
| [   26.166777][   T68] Tainted: [W]=WARN
[   26.166867][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.167018][   T68] Workqueue: netns cleanup_net
[   26.167144][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.167303][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.167798][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   26.167971][   T68] RAX: 00000000ffffffa6 RBX: ff11000004e20c80 RCX: 1ff4000000092eed
[   26.168154][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004e20d3c
[   26.168330][   T68] RBP: ff1100000a8fc000 R08: 1fe22000009c41a9 R09: ff11000008e42ed0
[   26.168510][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   26.168699][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.168883][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   26.169089][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.169237][   T68] CR2: 00007fc17b78df98 CR3: 000000000a378002 CR4: 0000000000771ef0
[   26.169420][   T68] PKRU: 55555554
[   26.169508][   T68] Call Trace:
[   26.169612][   T68]  <TASK>
[   26.169676][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.169846][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.169993][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.170111][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.170255][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.170371][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.170493][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   26.170670][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.170795][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   26.170911][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.171033][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   26.171150][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.171268][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.171387][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.171505][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.171669][   T68]  process_one_work (kernel/workqueue.c:3314)
[   26.171793][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.171912][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.172069][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.172188][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.172304][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.172425][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.172543][   T68]  kthread (kernel/kthread.c:436)
[   26.172645][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.172797][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.172915][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.173035][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.173180][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.173298][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.173420][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.176267][   T68] ------------[ cut here ]------------
| [   26.176398][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   26.176641][   T68] Modules linked in: unix_diag
| [   26.177070][   T68] Tainted: [W]=WARN
[   26.177163][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.177315][   T68] Workqueue: netns cleanup_net
[   26.177442][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.177599][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.178034][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   26.178193][   T68] RAX: 00000000ffffffa6 RBX: ff1100000e063c40 RCX: 1ff4000000092eed
[   26.178369][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e063cfc
[   26.178550][   T68] RBP: ff11000009321000 R08: 1fe2200001c0c7a1 R09: ff11000008e42ed0
[   26.178790][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   26.178973][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.179151][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   26.179354][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.179503][   T68] CR2: 00007fc17b78df98 CR3: 000000000a378002 CR4: 0000000000771ef0
[   26.179713][   T68] PKRU: 55555554
[   26.179808][   T68] Call Trace:
[   26.179895][   T68]  <TASK>
[   26.179957][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.180107][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.180253][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.180373][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.180500][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.180623][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.180741][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   26.180864][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.180982][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   26.181098][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.181218][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   26.181336][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.181457][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.181575][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.181696][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.181897][   T68]  process_one_work (kernel/workqueue.c:3314)
[   26.182023][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.182141][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.182262][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.182378][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.182501][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.182629][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.182745][   T68]  kthread (kernel/kthread.c:436)
[   26.182839][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.182986][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.183106][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.183222][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.183370][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.183489][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.183611][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.186296][   T68] ------------[ cut here ]------------
| [   26.186426][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   26.187123][   T68] Modules linked in: unix_diag
| [   26.187513][   T68] Tainted: [W]=WARN
[   26.187648][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.187803][   T68] Workqueue: netns cleanup_net
[   26.187925][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.188079][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.188552][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   26.188751][   T68] RAX: 00000000ffffffa6 RBX: ff11000013d6de00 RCX: 1ff4000000092eed
[   26.188927][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013d6debc
[   26.189100][   T68] RBP: ff11000007859000 R08: 1fe22000027adbd9 R09: ff11000008e42ed0
[   26.189271][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   26.189446][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.189666][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   26.189880][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.190029][   T68] CR2: 00007fc17b78df98 CR3: 000000000a378002 CR4: 0000000000771ef0
[   26.190208][   T68] PKRU: 55555554
[   26.190294][   T68] Call Trace:
[   26.190380][   T68]  <TASK>
[   26.190446][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.190639][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.190791][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.190907][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.191029][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.191146][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.191264][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   26.191383][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.191504][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   26.191663][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.191791][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   26.191909][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.192027][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.192145][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.192261][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.192378][   T68]  process_one_work (kernel/workqueue.c:3314)
[   26.192510][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.192674][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.192822][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.192944][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.193060][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.193178][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.193297][   T68]  kthread (kernel/kthread.c:436)
[   26.193385][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.193531][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.193692][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.193814][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.193960][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.194076][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.194194][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.196246][   T68] ------------[ cut here ]------------
| [   26.196377][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   26.196625][   T68] Modules linked in: unix_diag
| [   26.197020][   T68] Tainted: [W]=WARN
[   26.197108][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.197257][   T68] Workqueue: netns cleanup_net
[   26.197379][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.197535][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.197976][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   26.198124][   T68] RAX: 00000000ffffffa6 RBX: ff110000140af1c0 RCX: 1ff4000000092eed
[   26.198298][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000140af27c
[   26.198476][   T68] RBP: ff1100000a83c000 R08: 1fe2200002815e51 R09: ff11000008e42ed0
[   26.198655][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   26.198839][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.199016][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   26.199217][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.199363][   T68] CR2: 00007fae1b33b000 CR3: 00000000097f9002 CR4: 0000000000771ef0
[   26.199543][   T68] PKRU: 55555554
[   26.199639][   T68] Call Trace:
[   26.199726][   T68]  <TASK>
[   26.199792][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.199943][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.200086][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.200204][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.200320][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.200442][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.200560][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   26.200684][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.200809][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   26.200925][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.201045][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   26.201162][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.201279][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.201400][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.201520][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.201645][   T68]  process_one_work (kernel/workqueue.c:3314)
[   26.201772][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.201891][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.202013][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.202132][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.202251][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.202370][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.202491][   T68]  kthread (kernel/kthread.c:436)
[   26.202587][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.202734][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.202861][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.202980][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.203129][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.203247][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.203365][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.205311][   T68] ------------[ cut here ]------------
| [   26.205433][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   26.205672][   T68] Modules linked in: unix_diag
| [   26.206066][   T68] Tainted: [W]=WARN
[   26.206155][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.206300][   T68] Workqueue: netns cleanup_net
[   26.206421][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.206572][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.207004][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   26.207151][   T68] RAX: 00000000ffffffa6 RBX: ff110000140aee40 RCX: 1ff4000000092eed
[   26.207324][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000140aeefc
[   26.207503][   T68] RBP: ff11000008b49000 R08: 1fe2200002815de1 R09: ff11000008e42ed0
[   26.207682][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   26.207864][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.208039][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   26.208245][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.208395][   T68] CR2: 00007fae1b33b000 CR3: 00000000097f9002 CR4: 0000000000771ef0
[   26.208573][   T68] PKRU: 55555554
[   26.208667][   T68] Call Trace:
[   26.208759][   T68]  <TASK>
[   26.208820][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.208974][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.209118][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.209237][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.209356][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.209475][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.209599][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   26.209717][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.209846][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   26.209965][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.210087][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   26.210204][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.210320][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.210443][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.210558][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.210682][   T68]  process_one_work (kernel/workqueue.c:3314)
[   26.210809][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.210926][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.211048][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.211168][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.211284][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.211406][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.211525][   T68]  kthread (kernel/kthread.c:436)
[   26.211620][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.211772][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.211890][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.212011][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.212156][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.212273][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.212395][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.226354][   T68] ------------[ cut here ]------------
| [   26.226488][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   26.226741][   T68] Modules linked in: unix_diag
| [   26.227153][   T68] Tainted: [W]=WARN
[   26.227246][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.227401][   T68] Workqueue: netns cleanup_net
[   26.227535][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.227701][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.228158][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   26.228316][   T68] RAX: 00000000ffffffa6 RBX: ff1100000e063a80 RCX: 1ff4000000092eaf
[   26.228505][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e063b3c
[   26.228698][   T68] RBP: ff11000008b61000 R08: 1fe2200001c0c769 R09: ff11000008e42ed0
[   26.228893][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   26.229077][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   26.229265][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   26.229486][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.229648][   T68] CR2: 00007fae1b33b000 CR3: 00000000097f9002 CR4: 0000000000771ef0
[   26.229841][   T68] PKRU: 55555554
[   26.229934][   T68] Call Trace:
[   26.230030][   T68]  <TASK>
[   26.230094][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.230222][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.230319][   T68]  netif_close_many (net/core/dev.c:1804)
[   26.230448][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.230571][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.230702][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.230832][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   26.230956][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   26.231112][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   26.231272][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   26.231397][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.231526][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   26.231657][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.231820][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   26.231948][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   26.232074][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   26.232199][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   26.232323][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   26.232452][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   26.232577][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   26.232707][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.232841][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   26.232969][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.233093][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.233219][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.233342][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.233470][   T68]  process_one_work (kernel/workqueue.c:3314)
[   26.233602][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.233727][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.233859][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.233987][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.234110][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.234237][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.234361][   T68]  kthread (kernel/kthread.c:436)
[   26.234458][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.234618][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.234743][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.234873][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.235032][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.235156][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.235280][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.237672][   T68] ------------[ cut here ]------------
| [   26.237798][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   26.238033][   T68] Modules linked in: unix_diag
| [   26.238426][   T68] Tainted: [W]=WARN
[   26.238518][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.239120][   T68] Workqueue: netns cleanup_net
[   26.239246][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.239456][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.239941][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   26.240091][   T68] RAX: 00000000ffffffa6 RBX: ff11000009a0c200 RCX: 1ff4000000092ed5
[   26.240268][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a0c2bc
[   26.240449][   T68] RBP: ff11000008b61000 R08: 1fe2200001341859 R09: ff11000008e42ed0
[   26.240677][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   26.240861][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.241038][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   26.241245][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.241397][   T68] CR2: 00007fae1b33b000 CR3: 00000000097f9002 CR4: 0000000000771ef0
[   26.241579][   T68] PKRU: 55555554
[   26.241724][   T68] Call Trace:
[   26.241817][   T68]  <TASK>
[   26.241885][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.242038][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.242188][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   26.242311][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   26.242436][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   26.242557][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   26.242726][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   26.242852][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   26.242982][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   26.243099][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.243222][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   26.243343][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.243469][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.243637][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.243763][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.243885][   T68]  process_one_work (kernel/workqueue.c:3314)
[   26.244009][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.244128][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.244252][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.244374][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.244497][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.244667][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.244795][   T68]  kthread (kernel/kthread.c:436)
[   26.244884][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.245033][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.245153][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.245273][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.245425][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.245544][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.245712][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.276465][  T281] ------------[ cut here ]------------
| [   26.276621][  T281] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/281
| [   26.276858][  T281] Modules linked in: unix_diag
| [   26.277263][  T281] Tainted: [W]=WARN
[   26.277363][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.277530][  T281] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.277708][  T281] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.278183][  T281] RSP: 0018:ffa0000000a47a80 EFLAGS: 00010286
[   26.278355][  T281] RAX: 00000000ffffffa6 RBX: ff110000093e7a80 RCX: 1ff4000000148f16
[   26.278551][  T281] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000093e7b3c
[   26.278761][  T281] RBP: ff11000009344000 R08: 1fe220000127cf69 R09: ff1100000f7bd180
[   26.278958][  T281] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   26.279153][  T281] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009344000
[   26.279351][  T281] FS:  00007f182b41b840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   26.279592][  T281] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.279763][  T281] CR2: 00007f182b61cc20 CR3: 0000000010d8f004 CR4: 0000000000771ef0
[   26.279962][  T281] PKRU: 55555554
[   26.280061][  T281] Call Trace:
[   26.280158][  T281]  <TASK>
[   26.280226][  T281]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.280359][  T281]  ? notifier_call_chain (kernel/notifier.c:85)
[   26.280497][  T281]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.280603][  T281]  register_netdevice (net/core/dev.c:11488)
[   26.280736][  T281]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   26.280907][  T281]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   26.281039][  T281]  register_netdev (net/core/dev.c:11552)
[   26.281170][  T281]  loopback_net_init (drivers/net/loopback.c:218)
[   26.281303][  T281]  ops_init (net/core/net_namespace.c:137)
[   26.281410][  T281]  setup_net (net/core/net_namespace.c:446)
[   26.281512][  T281]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   26.282268][  T281]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   26.282403][  T281]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   26.282541][  T281]  copy_net_ns (net/core/net_namespace.c:579)
[   26.282737][  T281]  create_new_namespaces (kernel/nsproxy.c:132)
[   26.282877][  T281]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   26.283010][  T281]  ksys_unshare (kernel/fork.c:3243)
[   26.283141][  T281]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   26.283274][  T281]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   26.283404][  T281]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   26.283541][  T281]  ? __ia32_sys_open (fs/open.c:1374)
[   26.283731][  T281]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   26.283919][  T281]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   26.284054][  T281]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   26.284185][  T281]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   26.284313][  T281]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   26.284448][  T281]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.284679][  T281] RIP: 0033:0x7f182b6ddbcb
[   26.284823][  T281] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   26.285293][  T281] RSP: 002b:00007ffd15b72268 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   26.285495][  T281] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f182b6ddbcb
[   26.285702][  T281] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   26.285904][  T281] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   26.286100][  T281] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd15b74490
[   26.286296][  T281] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd15b74886
| [   26.294781][  T281] ------------[ cut here ]------------
| [   26.295074][  T281] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/281
| [   26.295299][  T281] Modules linked in: unix_diag
| [   26.296224][  T281] Tainted: [W]=WARN
[   26.296325][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.296489][  T281] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.296716][  T281] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.297185][  T281] RSP: 0018:ffa0000000a47918 EFLAGS: 00010286
[   26.297348][  T281] RAX: 00000000ffffffa6 RBX: ff11000004bd3000 RCX: 1ff4000000148ee9
[   26.297545][  T281] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004bd30bc
[   26.297799][  T281] RBP: ff11000002919000 R08: 1fe220000097a619 R09: ff1100000f7bd180
[   26.298052][  T281] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   26.298247][  T281] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002919000
[   26.298446][  T281] FS:  00007f182b41b840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   26.298730][  T281] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.298896][  T281] CR2: 00007f182b61cc20 CR3: 0000000010d8f004 CR4: 0000000000771ef0
[   26.299094][  T281] PKRU: 55555554
[   26.299190][  T281] Call Trace:
[   26.299288][  T281]  <TASK>
[   26.299356][  T281]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.299488][  T281]  ? notifier_call_chain (kernel/notifier.c:85)
[   26.299674][  T281]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.299781][  T281]  register_netdevice (net/core/dev.c:11488)
[   26.299914][  T281]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   26.300079][  T281]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   26.300211][  T281]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   26.300342][  T281]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   26.300476][  T281]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   26.300662][  T281]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   26.300799][  T281]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   26.300930][  T281]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   26.301068][  T281]  ops_init (net/core/net_namespace.c:137)
[   26.301168][  T281]  setup_net (net/core/net_namespace.c:446)
[   26.301266][  T281]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   26.301395][  T281]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   26.301530][  T281]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   26.301716][  T281]  copy_net_ns (net/core/net_namespace.c:579)
[   26.301853][  T281]  create_new_namespaces (kernel/nsproxy.c:132)
[   26.301987][  T281]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   26.302117][  T281]  ksys_unshare (kernel/fork.c:3243)
[   26.302248][  T281]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   26.302379][  T281]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   26.302512][  T281]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   26.302699][  T281]  ? __ia32_sys_open (fs/open.c:1374)
[   26.302835][  T281]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   26.302967][  T281]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   26.303098][  T281]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   26.303228][  T281]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   26.303357][  T281]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   26.303491][  T281]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.303710][  T281] RIP: 0033:0x7f182b6ddbcb
[   26.303853][  T281] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   26.304314][  T281] RSP: 002b:00007ffd15b72268 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   26.304513][  T281] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f182b6ddbcb
[   26.304770][  T281] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   26.304968][  T281] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   26.305160][  T281] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd15b74490
[   26.305356][  T281] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd15b74886
| [   26.309671][  T281] ------------[ cut here ]------------
| [   26.309816][  T281] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/281
| [   26.310044][  T281] Modules linked in: unix_diag
| [   26.310450][  T281] Tainted: [W]=WARN
[   26.310550][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.310720][  T281] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.310898][  T281] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.311372][  T281] RSP: 0018:ffa0000000a478f8 EFLAGS: 00010286
[   26.311542][  T281] RAX: 00000000ffffffa6 RBX: ff11000004bd3700 RCX: 1ff4000000148ee5
[   26.311743][  T281] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004bd37bc
[   26.311945][  T281] RBP: ff110000059fc000 R08: 1fe220000097a6f9 R09: ff1100000f7bd180
[   26.312146][  T281] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   26.312342][  T281] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000059fc000
[   26.312543][  T281] FS:  00007f182b41b840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   26.312787][  T281] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.312952][  T281] CR2: 00007f182b61cc20 CR3: 0000000010d8f004 CR4: 0000000000771ef0
[   26.313153][  T281] PKRU: 55555554
[   26.313251][  T281] Call Trace:
[   26.313351][  T281]  <TASK>
[   26.313422][  T281]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.313555][  T281]  ? notifier_call_chain (kernel/notifier.c:85)
[   26.313693][  T281]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.313799][  T281]  register_netdevice (net/core/dev.c:11488)
[   26.313934][  T281]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   26.314101][  T281]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   26.314234][  T281]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   26.314365][  T281]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   26.314501][  T281]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   26.314640][  T281]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   26.314780][  T281]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   26.314913][  T281]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   26.315049][  T281]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   26.315184][  T281]  vti_init_net (net/ipv4/ip_vti.c:517)
[   26.315316][  T281]  ops_init (net/core/net_namespace.c:137)
[   26.315420][  T281]  setup_net (net/core/net_namespace.c:446)
[   26.315522][  T281]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   26.316181][  T281]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   26.316317][  T281]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   26.316456][  T281]  copy_net_ns (net/core/net_namespace.c:579)
[   26.316648][  T281]  create_new_namespaces (kernel/nsproxy.c:132)
[   26.316843][  T281]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   26.316980][  T281]  ksys_unshare (kernel/fork.c:3243)
[   26.317113][  T281]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   26.317246][  T281]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   26.317380][  T281]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   26.317518][  T281]  ? __ia32_sys_open (fs/open.c:1374)
[   26.317711][  T281]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   26.317847][  T281]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   26.317979][  T281]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   26.318110][  T281]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   26.318243][  T281]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   26.318375][  T281]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.318544][  T281] RIP: 0033:0x7f182b6ddbcb
[   26.318744][  T281] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   26.319222][  T281] RSP: 002b:00007ffd15b72268 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   26.319422][  T281] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f182b6ddbcb
[   26.319679][  T281] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   26.319887][  T281] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   26.320083][  T281] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd15b74490
[   26.320279][  T281] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd15b74886
| [   26.325273][  T281] ------------[ cut here ]------------
| [   26.325405][  T281] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/281
| [   26.325640][  T281] Modules linked in: unix_diag
| [   26.326044][  T281] Tainted: [W]=WARN
[   26.326143][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.326306][  T281] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.326482][  T281] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.326957][  T281] RSP: 0018:ffa0000000a47a78 EFLAGS: 00010286
[   26.327121][  T281] RAX: 00000000ffffffa6 RBX: ff11000009a0c900 RCX: 1ff4000000148f15
[   26.327315][  T281] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a0c9bc
[   26.327514][  T281] RBP: ff11000008c39000 R08: 1fe2200001341939 R09: ff1100000f7bd180
[   26.327712][  T281] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   26.327911][  T281] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c39000
[   26.328106][  T281] FS:  00007f182b41b840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   26.328334][  T281] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.328500][  T281] CR2: 00007f182b61cc20 CR3: 0000000010d8f004 CR4: 0000000000771ef0
[   26.328701][  T281] PKRU: 55555554
[   26.328803][  T281] Call Trace:
[   26.328899][  T281]  <TASK>
[   26.328969][  T281]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.329100][  T281]  ? notifier_call_chain (kernel/notifier.c:85)
[   26.329229][  T281]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.329327][  T281]  register_netdevice (net/core/dev.c:11488)
[   26.329460][  T281]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   26.329626][  T281]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.329766][  T281]  register_netdev (net/core/dev.c:11552)
[   26.329896][  T281]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   26.330030][  T281]  ops_init (net/core/net_namespace.c:137)
[   26.330129][  T281]  setup_net (net/core/net_namespace.c:446)
[   26.330228][  T281]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   26.330358][  T281]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   26.330489][  T281]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   26.331142][  T281]  copy_net_ns (net/core/net_namespace.c:579)
[   26.331274][  T281]  create_new_namespaces (kernel/nsproxy.c:132)
[   26.331413][  T281]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   26.331543][  T281]  ksys_unshare (kernel/fork.c:3243)
[   26.331738][  T281]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   26.331875][  T281]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   26.332006][  T281]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   26.332136][  T281]  ? __ia32_sys_open (fs/open.c:1374)
[   26.332269][  T281]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   26.332399][  T281]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   26.332534][  T281]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   26.332718][  T281]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   26.332854][  T281]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   26.332985][  T281]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.333145][  T281] RIP: 0033:0x7f182b6ddbcb
[   26.333280][  T281] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   26.333812][  T281] RSP: 002b:00007ffd15b72268 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   26.334006][  T281] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f182b6ddbcb
[   26.334201][  T281] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   26.334397][  T281] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   26.334648][  T281] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd15b74490
[   26.334856][  T281] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd15b74886
| [   26.339029][  T281] ------------[ cut here ]------------
| [   26.339160][  T281] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/281
| [   26.339383][  T281] Modules linked in: unix_diag
| [   26.340309][  T281] Tainted: [W]=WARN
[   26.340413][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.340577][  T281] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.340812][  T281] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.341279][  T281] RSP: 0018:ffa0000000a47a68 EFLAGS: 00010286
[   26.341447][  T281] RAX: 00000000ffffffa6 RBX: ff11000013d6ce40 RCX: 1ff4000000148f13
[   26.341698][  T281] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013d6cefc
[   26.341952][  T281] RBP: ff110000086b1000 R08: 1fe22000027ad9e1 R09: ff1100000f7bd180
[   26.342150][  T281] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   26.342345][  T281] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000086b1000
[   26.342562][  T281] FS:  00007f182b41b840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   26.342850][  T281] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.343014][  T281] CR2: 00007f182b61cc20 CR3: 0000000010d8f004 CR4: 0000000000771ef0
[   26.343213][  T281] PKRU: 55555554
[   26.343309][  T281] Call Trace:
[   26.343408][  T281]  <TASK>
[   26.343477][  T281]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.343665][  T281]  ? notifier_call_chain (kernel/notifier.c:85)
[   26.343804][  T281]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.343905][  T281]  register_netdevice (net/core/dev.c:11488)
[   26.344040][  T281]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   26.344205][  T281]  register_netdev (net/core/dev.c:11552)
[   26.344335][  T281]  sit_init_net (net/ipv6/sit.c:1860)
[   26.344470][  T281]  ops_init (net/core/net_namespace.c:137)
[   26.344571][  T281]  setup_net (net/core/net_namespace.c:446)
[   26.344726][  T281]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   26.344860][  T281]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   26.344989][  T281]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   26.345122][  T281]  copy_net_ns (net/core/net_namespace.c:579)
[   26.345253][  T281]  create_new_namespaces (kernel/nsproxy.c:132)
[   26.345388][  T281]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   26.345522][  T281]  ksys_unshare (kernel/fork.c:3243)
[   26.345709][  T281]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   26.345844][  T281]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   26.345975][  T281]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   26.346106][  T281]  ? __ia32_sys_open (fs/open.c:1374)
[   26.346237][  T281]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   26.346367][  T281]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   26.346502][  T281]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   26.346689][  T281]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   26.346825][  T281]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   26.346954][  T281]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.347116][  T281] RIP: 0033:0x7f182b6ddbcb
[   26.347250][  T281] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   26.347737][  T281] RSP: 002b:00007ffd15b72268 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   26.347941][  T281] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f182b6ddbcb
[   26.348137][  T281] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   26.348333][  T281] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   26.348530][  T281] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd15b74490
[   26.348729][  T281] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd15b74886
| [   26.354051][  T281] ------------[ cut here ]------------
| [   26.354188][  T281] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/281
| [   26.354423][  T281] Modules linked in: unix_diag
| [   26.354831][  T281] Tainted: [W]=WARN
[   26.354930][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.355096][  T281] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.355267][  T281] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.355752][  T281] RSP: 0018:ffa0000000a47a78 EFLAGS: 00010286
[   26.355917][  T281] RAX: 00000000ffffffa6 RBX: ff1100000caa9000 RCX: 1ff4000000148f15
[   26.356112][  T281] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000caa90bc
[   26.356310][  T281] RBP: ff11000005239000 R08: 1fe2200001955219 R09: ff1100000f7bd180
[   26.356510][  T281] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   26.356710][  T281] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005239000
[   26.356912][  T281] FS:  00007f182b41b840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   26.357143][  T281] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.357307][  T281] CR2: 00007f182b61cc20 CR3: 0000000010d8f004 CR4: 0000000000771ef0
[   26.357507][  T281] PKRU: 55555554
[   26.357610][  T281] Call Trace:
[   26.357709][  T281]  <TASK>
[   26.357781][  T281]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.357913][  T281]  ? notifier_call_chain (kernel/notifier.c:85)
[   26.358044][  T281]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.358144][  T281]  register_netdevice (net/core/dev.c:11488)
[   26.358277][  T281]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   26.358443][  T281]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.358576][  T281]  register_netdev (net/core/dev.c:11552)
[   26.358712][  T281]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   26.358850][  T281]  ops_init (net/core/net_namespace.c:137)
[   26.358952][  T281]  setup_net (net/core/net_namespace.c:446)
[   26.359050][  T281]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   26.359179][  T281]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   26.359309][  T281]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   26.359445][  T281]  copy_net_ns (net/core/net_namespace.c:579)
[   26.359577][  T281]  create_new_namespaces (kernel/nsproxy.c:132)
[   26.359779][  T281]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   26.359913][  T281]  ksys_unshare (kernel/fork.c:3243)
[   26.360043][  T281]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   26.360173][  T281]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   26.360303][  T281]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   26.360439][  T281]  ? __ia32_sys_open (fs/open.c:1374)
[   26.360572][  T281]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   26.360764][  T281]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   26.360951][  T281]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   26.361079][  T281]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   26.361209][  T281]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   26.361341][  T281]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.361506][  T281] RIP: 0033:0x7f182b6ddbcb
[   26.361701][  T281] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   26.362171][  T281] RSP: 002b:00007ffd15b72268 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   26.362369][  T281] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f182b6ddbcb
[   26.362568][  T281] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   26.362823][  T281] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   26.363020][  T281] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd15b74490
[   26.363214][  T281] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd15b74886
| [   26.391944][  T282] ------------[ cut here ]------------
| [   26.392094][  T282] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/282
| [   26.392323][  T282] Modules linked in: unix_diag
| [   26.392816][  T282] Tainted: [W]=WARN
[   26.392915][  T282] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.393084][  T282] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.393253][  T282] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.393721][  T282] RSP: 0018:ffa0000000a57020 EFLAGS: 00010286
[   26.393889][  T282] RAX: 00000000ffffffa6 RBX: ff1100000b1cc900 RCX: 1ff400000014adca
[   26.394100][  T282] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b1cc9bc
[   26.394292][  T282] RBP: ff11000009344000 R08: 1fe2200001639939 R09: ff1100000f7bae58
[   26.394489][  T282] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   26.394764][  T282] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   26.394961][  T282] FS:  00007f33f5945840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   26.395255][  T282] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.395421][  T282] CR2: 00000000036dc988 CR3: 000000000901f001 CR4: 0000000000771ef0
[   26.395683][  T282] PKRU: 55555554
[   26.395784][  T282] Call Trace:
[   26.395880][  T282]  <TASK>
[   26.395949][  T282]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.396081][  T282]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.396180][  T282]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   26.396311][  T282]  __dev_notify_flags (net/core/dev.c:9787)
[   26.396447][  T282]  ? netif_change_name (net/core/dev.c:1495)
[   26.396577][  T282]  ? __dev_change_flags (net/core/dev.c:9752)
[   26.396788][  T282]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   26.396919][  T282]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.397050][  T282]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   26.397182][  T282]  netif_change_flags (net/core/dev.c:9820)
[   26.397314][  T282]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   26.397449][  T282]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   26.397659][  T282]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   26.397797][  T282]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   26.397961][  T282]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.398092][  T282]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   26.398221][  T282]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   26.398349][  T282]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   26.398481][  T282]  ? __kernel_text_address (kernel/extable.c:79)
[   26.398708][  T282]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   26.398851][  T282]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.398979][  T282]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   26.399108][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.399236][  T282]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.399365][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.399498][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.399642][  T282]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   26.399779][  T282]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   26.399910][  T282]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   26.400039][  T282]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   26.400169][  T282]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   26.400300][  T282]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   26.400439][  T282]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   26.400571][  T282]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.400706][  T282]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   26.400842][  T282]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   26.400972][  T282]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   26.401099][  T282]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.401230][  T282]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.401359][  T282]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   26.401493][  T282]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   26.401628][  T282]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.401763][  T282]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   26.401894][  T282]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   26.402025][  T282]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   26.402154][  T282]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.402282][  T282]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   26.402416][  T282]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.402546][  T282]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   26.402686][  T282]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   26.402821][  T282]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.402951][  T282]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   26.403085][  T282]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   26.403213][  T282]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   26.403344][  T282]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   26.403481][  T282]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   26.403616][  T282]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   26.403746][  T282]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   26.403884][  T282]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   26.404017][  T282]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   26.404148][  T282]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   26.404279][  T282]  ? copy_msghdr_from_user (net/socket.c:2635)
[   26.404410][  T282]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   26.404572][  T282]  ? move_addr_to_kernel (net/socket.c:258)
[   26.404708][  T282]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   26.404843][  T282]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   26.404977][  T282]  ___sys_sendmsg (net/socket.c:2752)
[   26.405105][  T282]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   26.405266][  T282]  ? copy_msghdr_from_user (net/socket.c:2603)
[   26.405410][  T282]  __sys_sendmsg (net/socket.c:2784)
[   26.405540][  T282]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   26.405675][  T282]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   26.405845][  T282]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   26.405976][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.406106][  T282]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   26.406236][  T282]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   26.406366][  T282]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   26.406500][  T282]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.406662][  T282] RIP: 0033:0x7f33f5b7f08e
[   26.406801][  T282] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   26.407265][  T282] RSP: 002b:00007ffcaabeff80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   26.407462][  T282] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f33f5b7f08e
[   26.407660][  T282] RDX: 0000000000000000 RSI: 00007ffcaabf0030 RDI: 0000000000000005
[   26.407859][  T282] RBP: 00007ffcaabeff90 R08: 0000000000000000 R09: 0000000000000000
[   26.408053][  T282] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d663
[   26.408245][  T282] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcaabf0700
| [   29.643072][   T68] ------------[ cut here ]------------
| [   29.643239][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   29.643480][   T68] Modules linked in: unix_diag
| [   29.643897][   T68] Tainted: [W]=WARN
[   29.643991][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.644143][   T68] Workqueue: netns cleanup_net
[   29.644268][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.644427][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.644870][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   29.645024][   T68] RAX: 00000000ffffffa6 RBX: ff1100001499bc40 RCX: 1ff4000000092eed
[   29.645204][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001499bcfc
[   29.645464][   T68] RBP: ff11000005239000 R08: 1fe22000029337a1 R09: ff11000008e42ed0
[   29.645671][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   29.645858][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.646040][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   29.646252][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.646400][   T68] CR2: 00007f176b6792a0 CR3: 000000004d34d002 CR4: 0000000000771ef0
[   29.646597][   T68] PKRU: 55555554
[   29.646688][   T68] Call Trace:
[   29.646784][   T68]  <TASK>
[   29.646848][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.647010][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.647156][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.647274][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.647393][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.647513][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.647690][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.647817][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.647937][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   29.648055][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.648178][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   29.648296][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.648416][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.648534][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.648697][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.648821][   T68]  process_one_work (kernel/workqueue.c:3314)
[   29.648943][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.649061][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.649184][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.649307][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.649429][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   29.649548][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.649685][   T68]  kthread (kernel/kthread.c:436)
[   29.649782][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.649928][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.650045][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.650163][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.650310][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.650431][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.650550][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.653355][   T68] ------------[ cut here ]------------
| [   29.653498][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   29.653791][   T68] Modules linked in: unix_diag
| [   29.654210][   T68] Tainted: [W]=WARN
[   29.654306][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.654465][   T68] Workqueue: netns cleanup_net
[   29.654596][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.654753][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.655182][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   29.655330][   T68] RAX: 00000000ffffffa6 RBX: ff1100001499a900 RCX: 1ff4000000092eed
[   29.655506][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001499a9bc
[   29.655699][   T68] RBP: ff110000086b1000 R08: 1fe2200002933539 R09: ff11000008e42ed0
[   29.656155][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   29.656329][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.656519][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   29.656730][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.656892][   T68] CR2: 00007f176b6792a0 CR3: 000000004d34d002 CR4: 0000000000771ef0
[   29.657070][   T68] PKRU: 55555554
[   29.657162][   T68] Call Trace:
[   29.657251][   T68]  <TASK>
[   29.657313][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.657468][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.657626][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.657744][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.657890][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.658008][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.658128][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.658257][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.658381][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   29.658514][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.658642][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   29.658780][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.658899][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.659018][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.659136][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.659257][   T68]  process_one_work (kernel/workqueue.c:3314)
[   29.659383][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.659509][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.659643][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.659767][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.659887][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   29.660006][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.660124][   T68]  kthread (kernel/kthread.c:436)
[   29.660214][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.660362][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.660484][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.660608][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.660761][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.660879][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.660999][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.675082][   T68] ------------[ cut here ]------------
| [   29.675222][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   29.675462][   T68] Modules linked in: unix_diag
| [   29.675866][   T68] Tainted: [W]=WARN
[   29.675956][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.676105][   T68] Workqueue: netns cleanup_net
[   29.676229][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.676384][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.676826][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   29.676976][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b175a80 RCX: 1ff4000000092eed
[   29.677154][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b175b3c
[   29.677332][   T68] RBP: ff11000008c39000 R08: 1fe220000162eb69 R09: ff11000008e42ed0
[   29.677515][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   29.677702][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.677885][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   29.678091][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.678243][   T68] CR2: 00005591414e3d5c CR3: 0000000004ead003 CR4: 0000000000771ef0
[   29.678423][   T68] PKRU: 55555554
[   29.678512][   T68] Call Trace:
[   29.678605][   T68]  <TASK>
[   29.678667][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.678822][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.678971][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.679090][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.679209][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.679326][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.679446][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.679564][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.679691][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   29.679813][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.679934][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   29.680053][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.680170][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.680293][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.680416][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.680535][   T68]  process_one_work (kernel/workqueue.c:3314)
[   29.680666][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.680788][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.680915][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.681036][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.681153][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   29.681274][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.681393][   T68]  kthread (kernel/kthread.c:436)
[   29.681484][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.681640][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.681763][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.681882][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.682028][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.682148][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.682267][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.684285][   T68] ------------[ cut here ]------------
| [   29.684402][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   29.684644][   T68] Modules linked in: unix_diag
| [   29.685031][   T68] Tainted: [W]=WARN
[   29.685121][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.685269][   T68] Workqueue: netns cleanup_net
[   29.685391][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.685548][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.685978][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   29.686126][   T68] RAX: 00000000ffffffa6 RBX: ff110000124bee40 RCX: 1ff4000000092eed
[   29.686304][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000124beefc
[   29.686478][   T68] RBP: ff110000059fc000 R08: 1fe2200002497de1 R09: ff11000008e42ed0
[   29.686656][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   29.686838][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.687015][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   29.687219][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.687367][   T68] CR2: 00005591414e3d5c CR3: 0000000004ead003 CR4: 0000000000771ef0
[   29.687549][   T68] PKRU: 55555554
[   29.687643][   T68] Call Trace:
[   29.687730][   T68]  <TASK>
[   29.687796][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.687949][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.688100][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.688219][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.688341][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.688462][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.688589][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.688709][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.688838][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   29.688957][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.689079][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   29.689198][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.689315][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.689439][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.689557][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.689681][   T68]  process_one_work (kernel/workqueue.c:3314)
[   29.689806][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.689924][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.690053][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.690171][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.690289][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   29.690412][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.690536][   T68]  kthread (kernel/kthread.c:436)
[   29.690631][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.690789][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.690907][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.691027][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.691174][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.691293][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.691413][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.693439][   T68] ------------[ cut here ]------------
| [   29.693558][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   29.693798][   T68] Modules linked in: unix_diag
| [   29.694184][   T68] Tainted: [W]=WARN
[   29.694272][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.694424][   T68] Workqueue: netns cleanup_net
[   29.694546][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.694707][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.695212][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   29.695360][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c9751c0 RCX: 1ff4000000092eed
[   29.695693][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c97527c
[   29.695871][   T68] RBP: ff11000002919000 R08: 1fe220000192ea51 R09: ff11000008e42ed0
[   29.696123][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   29.696296][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.696480][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   29.696772][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.696919][   T68] CR2: 00005591414e3d5c CR3: 0000000004ead003 CR4: 0000000000771ef0
[   29.697095][   T68] PKRU: 55555554
[   29.697254][   T68] Call Trace:
[   29.697342][   T68]  <TASK>
[   29.697403][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.697557][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.697785][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   29.697905][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   29.698026][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.698143][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   29.698333][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.698455][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   29.698574][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   29.698699][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.698897][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   29.699018][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.699136][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.699254][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.699517][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.699643][   T68]  process_one_work (kernel/workqueue.c:3314)
[   29.699771][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.699888][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.700083][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.700202][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.700324][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   29.700448][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.700641][   T68]  kthread (kernel/kthread.c:436)
[   29.700729][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.700882][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.701000][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.701189][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.701335][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.701455][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.701574][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.717138][   T68] ------------[ cut here ]------------
| [   29.717272][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   29.717524][   T68] Modules linked in: unix_diag
| [   29.717949][   T68] Tainted: [W]=WARN
[   29.718042][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.718199][   T68] Workqueue: netns cleanup_net
[   29.718329][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.718495][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.718950][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   29.719107][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cd72580 RCX: 1ff4000000092eaf
[   29.719292][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cd7263c
[   29.719481][   T68] RBP: ff11000009344000 R08: 1fe22000019ae4c9 R09: ff11000008e42ed0
[   29.719673][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   29.719864][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   29.720052][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   29.720269][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.720426][   T68] CR2: 00005591414e3d5c CR3: 0000000004ead003 CR4: 0000000000771ef0
[   29.720622][   T68] PKRU: 55555554
[   29.720714][   T68] Call Trace:
[   29.720812][   T68]  <TASK>
[   29.720878][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.721005][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.721101][   T68]  netif_close_many (net/core/dev.c:1804)
[   29.721228][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.721352][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.721481][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.721616][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   29.721742][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   29.721904][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   29.722062][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.722187][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.722311][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   29.722440][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.722601][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   29.722729][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   29.722861][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   29.722986][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   29.723112][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   29.723239][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   29.723369][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   29.723497][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.723630][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   29.723760][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.723887][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.724013][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.724146][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.724272][   T68]  process_one_work (kernel/workqueue.c:3314)
[   29.724402][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.724530][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.724713][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.724847][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.724972][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   29.725097][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.725222][   T68]  kthread (kernel/kthread.c:436)
[   29.725318][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.725476][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.725651][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.725783][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.725938][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.726061][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.726184][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.729747][   T68] ------------[ cut here ]------------
| [   29.729886][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   29.730125][   T68] Modules linked in: unix_diag
| [   29.730522][   T68] Tainted: [W]=WARN
[   29.730619][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.730769][   T68] Workqueue: netns cleanup_net
[   29.730895][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.731053][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.731483][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   29.731637][   T68] RAX: 00000000ffffffa6 RBX: ff11000008f43700 RCX: 1ff4000000092ed5
[   29.731822][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f437bc
[   29.732001][   T68] RBP: ff11000009344000 R08: 1fe22000011e86f9 R09: ff11000008e42ed0
[   29.732183][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   29.732360][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   29.732560][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   29.732839][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.732988][   T68] CR2: 00007f9c4293f493 CR3: 0000000008d32006 CR4: 0000000000771ef0
[   29.733168][   T68] PKRU: 55555554
[   29.733258][   T68] Call Trace:
[   29.733348][   T68]  <TASK>
[   29.733414][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   29.733568][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   29.733801][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   29.733923][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   29.734043][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   29.734163][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   29.734283][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   29.734406][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   29.734532][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   29.734721][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.734851][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   29.735026][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.735145][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   29.735265][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.735383][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.735507][   T68]  process_one_work (kernel/workqueue.c:3314)
[   29.735713][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   29.735836][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.735959][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   29.736081][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.736199][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   29.736320][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   29.736444][   T68]  kthread (kernel/kthread.c:436)
[   29.736535][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.736747][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.736875][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.736998][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   29.737148][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.737267][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   29.737386][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.747076][  T298] ------------[ cut here ]------------
| [   29.747238][  T298] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/298
| [   29.747469][  T298] Modules linked in: unix_diag
| [   29.747918][  T298] Tainted: [W]=WARN
[   29.748016][  T298] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.748178][  T298] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.748347][  T298] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.748825][  T298] RSP: 0018:ffa0000000a87a80 EFLAGS: 00010286
[   29.748989][  T298] RAX: 00000000ffffffa6 RBX: ff110000027a23c0 RCX: 1ff4000000150f16
[   29.749183][  T298] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000027a247c
[   29.749380][  T298] RBP: ff1100000a8fc000 R08: 1fe22000004f4491 R09: ff11000005330b80
[   29.749577][  T298] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   29.749781][  T298] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a8fc000
[   29.749978][  T298] FS:  00007f9c425c6840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   29.750208][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.750369][  T298] CR2: 00007f9c4293f493 CR3: 0000000008d32006 CR4: 0000000000771ef0
[   29.750567][  T298] PKRU: 55555554
[   29.750670][  T298] Call Trace:
[   29.750772][  T298]  <TASK>
[   29.750839][  T298]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.750972][  T298]  ? notifier_call_chain (kernel/notifier.c:85)
[   29.751106][  T298]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.751206][  T298]  register_netdevice (net/core/dev.c:11488)
[   29.751338][  T298]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   29.751504][  T298]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   29.751643][  T298]  register_netdev (net/core/dev.c:11552)
[   29.751778][  T298]  loopback_net_init (drivers/net/loopback.c:218)
[   29.751910][  T298]  ops_init (net/core/net_namespace.c:137)
[   29.752011][  T298]  setup_net (net/core/net_namespace.c:446)
[   29.752112][  T298]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   29.752242][  T298]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   29.752372][  T298]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   29.752509][  T298]  copy_net_ns (net/core/net_namespace.c:579)
[   29.752648][  T298]  create_new_namespaces (kernel/nsproxy.c:132)
[   29.752787][  T298]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   29.752920][  T298]  ksys_unshare (kernel/fork.c:3243)
[   29.753051][  T298]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   29.753182][  T298]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   29.753312][  T298]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   29.753450][  T298]  ? __ia32_sys_open (fs/open.c:1374)
[   29.753588][  T298]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   29.753718][  T298]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   29.753854][  T298]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   29.753984][  T298]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   29.754114][  T298]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   29.754245][  T298]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.754407][  T298] RIP: 0033:0x7f9c42888bcb
[   29.754548][  T298] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   29.755027][  T298] RSP: 002b:00007ffcb178b898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   29.755225][  T298] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9c42888bcb
[   29.755422][  T298] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   29.755622][  T298] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   29.755825][  T298] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcb178dac0
[   29.756019][  T298] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcb178f886
| [   29.766004][  T298] ------------[ cut here ]------------
| [   29.766146][  T298] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/298
| [   29.766371][  T298] Modules linked in: unix_diag
| [   29.766784][  T298] Tainted: [W]=WARN
[   29.766882][  T298] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.767044][  T298] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.767212][  T298] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.767741][  T298] RSP: 0018:ffa0000000a87918 EFLAGS: 00010286
[   29.767908][  T298] RAX: 00000000ffffffa6 RBX: ff1100000c1cf000 RCX: 1ff4000000150ee9
[   29.768102][  T298] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c1cf0bc
[   29.768294][  T298] RBP: ff11000008d81000 R08: 1fe2200001839e19 R09: ff11000005330b80
[   29.768491][  T298] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   29.768741][  T298] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008d81000
[   29.768996][  T298] FS:  00007f9c425c6840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   29.769226][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.769389][  T298] CR2: 00007f9c4293f493 CR3: 0000000008d32006 CR4: 0000000000771ef0
[   29.769646][  T298] PKRU: 55555554
[   29.769744][  T298] Call Trace:
[   29.769846][  T298]  <TASK>
[   29.769914][  T298]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.770043][  T298]  ? notifier_call_chain (kernel/notifier.c:85)
[   29.770173][  T298]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.770271][  T298]  register_netdevice (net/core/dev.c:11488)
[   29.770402][  T298]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   29.770571][  T298]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   29.770760][  T298]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   29.770891][  T298]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   29.771020][  T298]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   29.771152][  T298]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   29.771282][  T298]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   29.771416][  T298]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   29.771549][  T298]  ops_init (net/core/net_namespace.c:137)
[   29.771702][  T298]  setup_net (net/core/net_namespace.c:446)
[   29.771804][  T298]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   29.771934][  T298]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   29.772067][  T298]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   29.772198][  T298]  copy_net_ns (net/core/net_namespace.c:579)
[   29.772328][  T298]  create_new_namespaces (kernel/nsproxy.c:132)
[   29.772466][  T298]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   29.772651][  T298]  ksys_unshare (kernel/fork.c:3243)
[   29.772787][  T298]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   29.772918][  T298]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   29.773047][  T298]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   29.773178][  T298]  ? __ia32_sys_open (fs/open.c:1374)
[   29.773309][  T298]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   29.773442][  T298]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   29.773574][  T298]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   29.773763][  T298]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   29.773894][  T298]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   29.774023][  T298]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.774184][  T298] RIP: 0033:0x7f9c42888bcb
[   29.774322][  T298] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   29.774822][  T298] RSP: 002b:00007ffcb178b898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   29.775018][  T298] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9c42888bcb
[   29.775214][  T298] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   29.775414][  T298] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   29.775615][  T298] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcb178dac0
[   29.775814][  T298] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcb178f886
| [   29.780257][  T298] ------------[ cut here ]------------
| [   29.780391][  T298] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/298
| [   29.780632][  T298] Modules linked in: unix_diag
| [   29.781040][  T298] Tainted: [W]=WARN
[   29.781141][  T298] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.781307][  T298] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.781482][  T298] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.781961][  T298] RSP: 0018:ffa0000000a878f8 EFLAGS: 00010286
[   29.782128][  T298] RAX: 00000000ffffffa6 RBX: ff1100000971b000 RCX: 1ff4000000150ee5
[   29.782324][  T298] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000971b0bc
[   29.782523][  T298] RBP: ff110000084bc000 R08: 1fe22000012e3619 R09: ff11000005330b80
[   29.783285][  T298] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   29.783485][  T298] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000084bc000
[   29.783739][  T298] FS:  00007f9c425c6840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   29.783975][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.784197][  T298] CR2: 00007f9c4293f493 CR3: 0000000008d32006 CR4: 0000000000771ef0
[   29.784395][  T298] PKRU: 55555554
[   29.784498][  T298] Call Trace:
[   29.784649][  T298]  <TASK>
[   29.784717][  T298]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.784855][  T298]  ? notifier_call_chain (kernel/notifier.c:85)
[   29.784988][  T298]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.785088][  T298]  register_netdevice (net/core/dev.c:11488)
[   29.785223][  T298]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   29.785387][  T298]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   29.785523][  T298]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   29.785709][  T298]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   29.785845][  T298]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   29.785979][  T298]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   29.786111][  T298]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   29.786244][  T298]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   29.786377][  T298]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   29.786515][  T298]  vti_init_net (net/ipv4/ip_vti.c:517)
[   29.786702][  T298]  ops_init (net/core/net_namespace.c:137)
[   29.786807][  T298]  setup_net (net/core/net_namespace.c:446)
[   29.786906][  T298]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   29.787037][  T298]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   29.787168][  T298]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   29.787303][  T298]  copy_net_ns (net/core/net_namespace.c:579)
[   29.787439][  T298]  create_new_namespaces (kernel/nsproxy.c:132)
[   29.787574][  T298]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   29.787764][  T298]  ksys_unshare (kernel/fork.c:3243)
[   29.787895][  T298]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   29.788028][  T298]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   29.788159][  T298]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   29.788293][  T298]  ? __ia32_sys_open (fs/open.c:1374)
[   29.788427][  T298]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   29.788558][  T298]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   29.788742][  T298]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   29.788877][  T298]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   29.789010][  T298]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   29.789141][  T298]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.789304][  T298] RIP: 0033:0x7f9c42888bcb
[   29.789446][  T298] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   29.789975][  T298] RSP: 002b:00007ffcb178b898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   29.790172][  T298] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9c42888bcb
[   29.790370][  T298] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   29.790567][  T298] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   29.790823][  T298] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcb178dac0
[   29.791019][  T298] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcb178f886
| [   29.795259][  T298] ------------[ cut here ]------------
| [   29.795400][  T298] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/298
| [   29.795638][  T298] Modules linked in: unix_diag
| [   29.796040][  T298] Tainted: [W]=WARN
[   29.796138][  T298] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.796301][  T298] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.796474][  T298] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.796948][  T298] RSP: 0018:ffa0000000a87a78 EFLAGS: 00010286
[   29.797113][  T298] RAX: 00000000ffffffa6 RBX: ff1100000aa80580 RCX: 1ff4000000150f15
[   29.797305][  T298] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000aa8063c
[   29.797504][  T298] RBP: ff1100000f52c000 R08: 1fe22000015500c9 R09: ff11000005330b80
[   29.797707][  T298] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   29.797906][  T298] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000f52c000
[   29.798102][  T298] FS:  00007f9c425c6840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   29.798331][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.798521][  T298] CR2: 0000561f0f42ed5c CR3: 0000000008d32005 CR4: 0000000000771ef0
[   29.798723][  T298] PKRU: 55555554
[   29.798826][  T298] Call Trace:
[   29.798924][  T298]  <TASK>
[   29.798991][  T298]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.799125][  T298]  ? notifier_call_chain (kernel/notifier.c:85)
[   29.799256][  T298]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.799355][  T298]  register_netdevice (net/core/dev.c:11488)
[   29.799487][  T298]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   29.799653][  T298]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.799792][  T298]  register_netdev (net/core/dev.c:11552)
[   29.799923][  T298]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   29.800056][  T298]  ops_init (net/core/net_namespace.c:137)
[   29.800156][  T298]  setup_net (net/core/net_namespace.c:446)
[   29.800254][  T298]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   29.800382][  T298]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   29.800514][  T298]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   29.800652][  T298]  copy_net_ns (net/core/net_namespace.c:579)
[   29.800787][  T298]  create_new_namespaces (kernel/nsproxy.c:132)
[   29.800922][  T298]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   29.801053][  T298]  ksys_unshare (kernel/fork.c:3243)
[   29.801184][  T298]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   29.801312][  T298]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   29.801445][  T298]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   29.801575][  T298]  ? __ia32_sys_open (fs/open.c:1374)
[   29.801711][  T298]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   29.801845][  T298]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   29.801977][  T298]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   29.802106][  T298]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   29.802238][  T298]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   29.802369][  T298]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.802534][  T298] RIP: 0033:0x7f9c42888bcb
[   29.802675][  T298] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   29.803145][  T298] RSP: 002b:00007ffcb178b898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   29.803341][  T298] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9c42888bcb
[   29.803538][  T298] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   29.803740][  T298] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   29.803940][  T298] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcb178dac0
[   29.804132][  T298] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcb178f886
| [   29.808188][  T298] ------------[ cut here ]------------
| [   29.808334][  T298] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/298
| [   29.808560][  T298] Modules linked in: unix_diag
| [   29.808975][  T298] Tainted: [W]=WARN
[   29.809072][  T298] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.809233][  T298] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.809400][  T298] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.809877][  T298] RSP: 0018:ffa0000000a87a68 EFLAGS: 00010286
[   29.810041][  T298] RAX: 00000000ffffffa6 RBX: ff1100000bd55700 RCX: 1ff4000000150f13
[   29.810237][  T298] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bd557bc
[   29.810434][  T298] RBP: ff11000007c89000 R08: 1fe22000017aaaf9 R09: ff11000005330b80
[   29.810633][  T298] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   29.810837][  T298] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007c89000
[   29.811034][  T298] FS:  00007f9c425c6840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   29.811261][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.811430][  T298] CR2: 0000561f0f42ed5c CR3: 0000000008d32005 CR4: 0000000000771ef0
[   29.811631][  T298] PKRU: 55555554
[   29.811729][  T298] Call Trace:
[   29.811832][  T298]  <TASK>
[   29.811899][  T298]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.812032][  T298]  ? notifier_call_chain (kernel/notifier.c:85)
[   29.812162][  T298]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.812260][  T298]  register_netdevice (net/core/dev.c:11488)
[   29.812393][  T298]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   29.812562][  T298]  register_netdev (net/core/dev.c:11552)
[   29.812695][  T298]  sit_init_net (net/ipv6/sit.c:1860)
[   29.812833][  T298]  ops_init (net/core/net_namespace.c:137)
[   29.812933][  T298]  setup_net (net/core/net_namespace.c:446)
[   29.813034][  T298]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   29.813163][  T298]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   29.813293][  T298]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   29.813428][  T298]  copy_net_ns (net/core/net_namespace.c:579)
[   29.813559][  T298]  create_new_namespaces (kernel/nsproxy.c:132)
[   29.813697][  T298]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   29.813832][  T298]  ksys_unshare (kernel/fork.c:3243)
[   29.813964][  T298]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   29.814092][  T298]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   29.814222][  T298]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   29.814354][  T298]  ? __ia32_sys_open (fs/open.c:1374)
[   29.814488][  T298]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   29.814623][  T298]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   29.814752][  T298]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   29.814886][  T298]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   29.815015][  T298]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   29.815145][  T298]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.815308][  T298] RIP: 0033:0x7f9c42888bcb
[   29.815447][  T298] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   29.815923][  T298] RSP: 002b:00007ffcb178b898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   29.816119][  T298] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9c42888bcb
[   29.816315][  T298] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   29.816514][  T298] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   29.816713][  T298] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcb178dac0
[   29.816913][  T298] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcb178f886
| [   29.821272][  T298] ------------[ cut here ]------------
| [   29.821408][  T298] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/298
| [   29.821639][  T298] Modules linked in: unix_diag
| [   29.822041][  T298] Tainted: [W]=WARN
[   29.822140][  T298] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.822303][  T298] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.822476][  T298] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.822954][  T298] RSP: 0018:ffa0000000a87a78 EFLAGS: 00010286
[   29.823120][  T298] RAX: 00000000ffffffa6 RBX: ff11000004e85380 RCX: 1ff4000000150f15
[   29.823313][  T298] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004e8543c
[   29.823512][  T298] RBP: ff11000007f89000 R08: 1fe22000009d0a89 R09: ff11000005330b80
[   29.823712][  T298] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   29.823914][  T298] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007f89000
[   29.824109][  T298] FS:  00007f9c425c6840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   29.824339][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.824506][  T298] CR2: 0000561f0f42ed5c CR3: 0000000008d32005 CR4: 0000000000771ef0
[   29.824708][  T298] PKRU: 55555554
[   29.824813][  T298] Call Trace:
[   29.824911][  T298]  <TASK>
[   29.824979][  T298]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.825111][  T298]  ? notifier_call_chain (kernel/notifier.c:85)
[   29.825243][  T298]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.825342][  T298]  register_netdevice (net/core/dev.c:11488)
[   29.825477][  T298]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   29.825644][  T298]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.825783][  T298]  register_netdev (net/core/dev.c:11552)
[   29.825912][  T298]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   29.826043][  T298]  ops_init (net/core/net_namespace.c:137)
[   29.826144][  T298]  setup_net (net/core/net_namespace.c:446)
[   29.826242][  T298]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   29.826372][  T298]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   29.826505][  T298]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   29.826641][  T298]  copy_net_ns (net/core/net_namespace.c:579)
[   29.826776][  T298]  create_new_namespaces (kernel/nsproxy.c:132)
[   29.826910][  T298]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   29.827043][  T298]  ksys_unshare (kernel/fork.c:3243)
[   29.827173][  T298]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   29.827302][  T298]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   29.827435][  T298]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   29.827566][  T298]  ? __ia32_sys_open (fs/open.c:1374)
[   29.827703][  T298]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   29.827838][  T298]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   29.827971][  T298]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   29.828100][  T298]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   29.828229][  T298]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   29.828361][  T298]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.828525][  T298] RIP: 0033:0x7f9c42888bcb
[   29.828662][  T298] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   29.829131][  T298] RSP: 002b:00007ffcb178b898 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   29.829329][  T298] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9c42888bcb
[   29.829526][  T298] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   29.829723][  T298] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   29.829924][  T298] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcb178dac0
[   29.830118][  T298] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffcb178f886
| [   29.860556][  T299] ------------[ cut here ]------------
| [   29.860725][  T299] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/299
| [   29.860964][  T299] Modules linked in: unix_diag
| [   29.861362][  T299] Tainted: [W]=WARN
[   29.861466][  T299] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.861633][  T299] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   29.861816][  T299] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   29.862278][  T299] RSP: 0018:ffa0000000ac7020 EFLAGS: 00010286
[   29.862444][  T299] RAX: 00000000ffffffa6 RBX: ff11000009514580 RCX: 1ff4000000158dca
[   29.862646][  T299] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000951463c
[   29.862845][  T299] RBP: ff1100000a8fc000 R08: 1fe22000012a28c9 R09: ff11000009b52e58
[   29.863038][  T299] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   29.863231][  T299] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   29.863433][  T299] FS:  00007fc9711d5840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   29.863664][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.863834][  T299] CR2: 000000001bccb988 CR3: 000000000ca34005 CR4: 0000000000771ef0
[   29.864036][  T299] PKRU: 55555554
[   29.864133][  T299] Call Trace:
[   29.864231][  T299]  <TASK>
[   29.864298][  T299]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   29.864436][  T299]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   29.864536][  T299]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   29.864673][  T299]  __dev_notify_flags (net/core/dev.c:9787)
[   29.864813][  T299]  ? netif_change_name (net/core/dev.c:1495)
[   29.864944][  T299]  ? __dev_change_flags (net/core/dev.c:9752)
[   29.865074][  T299]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   29.865205][  T299]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.865338][  T299]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   29.865475][  T299]  netif_change_flags (net/core/dev.c:9820)
[   29.866064][  T299]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   29.866198][  T299]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   29.866330][  T299]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   29.866466][  T299]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   29.866634][  T299]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.866768][  T299]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   29.866899][  T299]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   29.867031][  T299]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   29.867164][  T299]  ? __kernel_text_address (kernel/extable.c:79)
[   29.867296][  T299]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   29.867440][  T299]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.867571][  T299]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   29.867707][  T299]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.867844][  T299]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   29.867975][  T299]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.868106][  T299]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.868236][  T299]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   29.868366][  T299]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   29.868500][  T299]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   29.868639][  T299]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   29.868775][  T299]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   29.868909][  T299]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   29.869043][  T299]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   29.869175][  T299]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.869304][  T299]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   29.869439][  T299]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   29.869568][  T299]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   29.869704][  T299]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.869857][  T299]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.869987][  T299]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   29.870117][  T299]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   29.870248][  T299]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   29.870378][  T299]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   29.870513][  T299]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   29.870651][  T299]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   29.870785][  T299]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.870915][  T299]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   29.871047][  T299]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   29.871175][  T299]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   29.871308][  T299]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   29.871442][  T299]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.871573][  T299]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.871715][  T299]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   29.871852][  T299]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   29.871984][  T299]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.872115][  T299]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.872245][  T299]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   29.872376][  T299]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   29.872512][  T299]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   29.872653][  T299]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   29.872792][  T299]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   29.872924][  T299]  ? copy_msghdr_from_user (net/socket.c:2635)
[   29.873054][  T299]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   29.873216][  T299]  ? move_addr_to_kernel (net/socket.c:258)
[   29.873346][  T299]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   29.873481][  T299]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   29.873620][  T299]  ___sys_sendmsg (net/socket.c:2752)
[   29.873749][  T299]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   29.873918][  T299]  ? copy_msghdr_from_user (net/socket.c:2603)
[   29.874061][  T299]  __sys_sendmsg (net/socket.c:2784)
[   29.874192][  T299]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   29.874321][  T299]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   29.874488][  T299]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   29.874627][  T299]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   29.874764][  T299]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   29.874896][  T299]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   29.875029][  T299]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   29.875159][  T299]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.875321][  T299] RIP: 0033:0x7fc97140f08e
[   29.875460][  T299] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   29.875935][  T299] RSP: 002b:00007fff5a58a980 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.876135][  T299] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fc97140f08e
[   29.876329][  T299] RDX: 0000000000000000 RSI: 00007fff5a58aa30 RDI: 0000000000000005
[   29.876528][  T299] RBP: 00007fff5a58a990 R08: 0000000000000000 R09: 0000000000000000
[   29.876731][  T299] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d667
[   29.876934][  T299] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff5a58b100
| [   35.099470][   T68] ------------[ cut here ]------------
| [   35.099643][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   35.099889][   T68] Modules linked in: unix_diag
| [   35.100286][   T68] Tainted: [W]=WARN
[   35.100376][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.100527][   T68] Workqueue: netns cleanup_net
[   35.100660][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.100822][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.101250][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   35.101401][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b6a6040 RCX: 1ff4000000092eed
[   35.101587][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b6a60fc
[   35.101765][   T68] RBP: ff11000007f89000 R08: 1fe22000016d4c21 R09: ff11000008e42ed0
[   35.101946][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.102124][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.102308][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   35.102519][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.102676][   T68] CR2: 00007fde26d4b2a0 CR3: 000000000a378006 CR4: 0000000000771ef0
[   35.102858][   T68] PKRU: 55555554
[   35.102947][   T68] Call Trace:
[   35.103036][   T68]  <TASK>
[   35.103101][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.103255][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.103407][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.103528][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.103658][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.103784][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.103905][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.104029][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.104152][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   35.104271][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.104393][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   35.104514][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.104639][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.104759][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.104885][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.105008][   T68]  process_one_work (kernel/workqueue.c:3314)
[   35.105129][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.105249][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.105371][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.105494][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.105619][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   35.105740][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.105865][   T68]  kthread (kernel/kthread.c:436)
[   35.105955][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.106104][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.106222][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.106343][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.106494][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.106618][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.106737][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.108938][   T68] ------------[ cut here ]------------
| [   35.109056][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   35.109290][   T68] Modules linked in: unix_diag
| [   35.109684][   T68] Tainted: [W]=WARN
[   35.109779][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.109927][   T68] Workqueue: netns cleanup_net
[   35.110050][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.110201][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.110627][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   35.110779][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cf9b1c0 RCX: 1ff4000000092eed
[   35.110954][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf9b27c
[   35.111126][   T68] RBP: ff11000007c89000 R08: 1fe22000019f3651 R09: ff11000008e42ed0
[   35.111299][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.111475][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.111654][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   35.111867][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.112013][   T68] CR2: 00007fde26d4b2a0 CR3: 000000000a378006 CR4: 0000000000771ef0
[   35.112187][   T68] PKRU: 55555554
[   35.112274][   T68] Call Trace:
[   35.112362][   T68]  <TASK>
[   35.112425][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.112573][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.112730][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.112853][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.112974][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.113091][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.113211][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.113329][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.113450][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   35.113567][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.113692][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   35.113812][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.113929][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.114050][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.114169][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.114289][   T68]  process_one_work (kernel/workqueue.c:3314)
[   35.114485][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.114609][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.114734][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.114859][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.114975][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   35.115093][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.115211][   T68]  kthread (kernel/kthread.c:436)
[   35.115301][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.115522][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.115646][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.115763][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.115986][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.116102][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.116219][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.118519][   T68] ------------[ cut here ]------------
| [   35.118710][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   35.118948][   T68] Modules linked in: unix_diag
| [   35.119402][   T68] Tainted: [W]=WARN
[   35.119493][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.119643][   T68] Workqueue: netns cleanup_net
[   35.119844][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.119998][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.120493][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   35.120644][   T68] RAX: 00000000ffffffa6 RBX: ff1100000bd67540 RCX: 1ff4000000092eed
[   35.120822][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bd675fc
[   35.121068][   T68] RBP: ff1100000f52c000 R08: 1fe22000017acec1 R09: ff11000008e42ed0
[   35.121242][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.121489][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.121668][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   35.121876][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.122098][   T68] CR2: 00007fde26d4b2a0 CR3: 000000000a378006 CR4: 0000000000771ef0
[   35.122271][   T68] PKRU: 55555554
[   35.122358][   T68] Call Trace:
[   35.122448][   T68]  <TASK>
[   35.122580][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.122732][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.122887][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.123009][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.123202][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.123317][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.123440][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.123560][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.123683][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   35.123803][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.123922][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   35.124039][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.124227][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.124345][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.124465][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.124593][   T68]  process_one_work (kernel/workqueue.c:3314)
[   35.124791][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.124912][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.125037][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.125155][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.125414][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   35.125534][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.125656][   T68]  kthread (kernel/kthread.c:436)
[   35.125744][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.125893][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.126012][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.126130][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.126280][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.126397][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.126518][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.128634][   T68] ------------[ cut here ]------------
| [   35.128749][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   35.128985][   T68] Modules linked in: unix_diag
| [   35.129380][   T68] Tainted: [W]=WARN
[   35.129475][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.129627][   T68] Workqueue: netns cleanup_net
[   35.129750][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.129987][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.130564][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   35.130717][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c5e9000 RCX: 1ff4000000092eed
[   35.130898][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c5e90bc
[   35.131145][   T68] RBP: ff110000084bc000 R08: 1fe22000018bd219 R09: ff11000008e42ed0
[   35.131321][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.131576][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.131759][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   35.132058][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.132281][   T68] CR2: 00007fde26d4b2a0 CR3: 000000000a378006 CR4: 0000000000771ef0
[   35.132488][   T68] PKRU: 55555554
[   35.132577][   T68] Call Trace:
[   35.132683][   T68]  <TASK>
[   35.132821][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.133002][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.133157][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.133287][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.133496][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.133628][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.133753][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.133880][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.134072][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   35.134193][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.134317][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   35.134439][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.134632][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.134753][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.134879][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.135000][   T68]  process_one_work (kernel/workqueue.c:3314)
[   35.135193][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.135309][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.135433][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.135551][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.135674][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   35.135798][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.135914][   T68]  kthread (kernel/kthread.c:436)
[   35.136001][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.136218][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.136334][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.136452][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.136673][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.136794][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.136911][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.139498][   T68] ------------[ cut here ]------------
| [   35.139624][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   35.139855][   T68] Modules linked in: unix_diag
| [   35.140234][   T68] Tainted: [W]=WARN
[   35.140322][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.140471][   T68] Workqueue: netns cleanup_net
[   35.140602][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.140753][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.141181][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   35.141326][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b8d6ac0 RCX: 1ff4000000092eed
[   35.141501][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b8d6b7c
[   35.141680][   T68] RBP: ff11000008d81000 R08: 1fe220000171ad71 R09: ff11000008e42ed0
[   35.141857][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.142034][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.142208][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   35.142416][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.142564][   T68] CR2: 00007fde26d4b2a0 CR3: 000000000a378006 CR4: 0000000000771ef0
[   35.142742][   T68] PKRU: 55555554
[   35.142839][   T68] Call Trace:
[   35.142926][   T68]  <TASK>
[   35.142987][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.143136][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.143280][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   35.143397][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   35.143522][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.143643][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   35.143760][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.143886][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   35.144005][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   35.144121][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.144241][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   35.144357][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.144855][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.144974][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.145091][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.145210][   T68]  process_one_work (kernel/workqueue.c:3314)
[   35.145330][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.145447][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.145569][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.145691][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.145884][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   35.146006][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.146125][   T68]  kthread (kernel/kthread.c:436)
[   35.146213][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.146430][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.146549][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.146671][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.146825][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.147080][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.147197][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.162733][   T68] ------------[ cut here ]------------
| [   35.162870][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   35.163119][   T68] Modules linked in: unix_diag
| [   35.163528][   T68] Tainted: [W]=WARN
[   35.164087][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.164242][   T68] Workqueue: netns cleanup_net
[   35.164369][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.164531][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.165024][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   35.165180][   T68] RAX: 00000000ffffffa6 RBX: ff1100000bd66040 RCX: 1ff4000000092eaf
[   35.165363][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bd660fc
[   35.165550][   T68] RBP: ff1100000a8fc000 R08: 1fe22000017acc21 R09: ff11000008e42ed0
[   35.165788][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   35.165972][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   35.166156][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   35.166372][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.166529][   T68] CR2: 00007fde26d4b2a0 CR3: 000000000a378006 CR4: 0000000000771ef0
[   35.166763][   T68] PKRU: 55555554
[   35.166861][   T68] Call Trace:
[   35.166952][   T68]  <TASK>
[   35.167016][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.167141][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.167236][   T68]  netif_close_many (net/core/dev.c:1804)
[   35.167358][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.167480][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.167650][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.167775][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   35.167899][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   35.168052][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   35.168210][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   35.168334][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   35.168463][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   35.168634][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.168793][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.168919][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.169042][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.169165][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.169287][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.169415][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.169540][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   35.169711][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.169839][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   35.169960][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.170081][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.170206][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.170328][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.170452][   T68]  process_one_work (kernel/workqueue.c:3314)
[   35.170578][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.170749][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.170879][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.171002][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.171124][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   35.171250][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.171374][   T68]  kthread (kernel/kthread.c:436)
[   35.171469][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.171669][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.171798][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.171920][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.172072][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.172195][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.172316][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.179505][   T68] ------------[ cut here ]------------
| [   35.179654][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   35.179896][   T68] Modules linked in: unix_diag
| [   35.180285][   T68] Tainted: [W]=WARN
[   35.180374][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.180527][   T68] Workqueue: netns cleanup_net
[   35.180655][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.180813][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.181235][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   35.181396][   T68] RAX: 00000000ffffffa6 RBX: ff11000012d123c0 RCX: 1ff4000000092ed5
[   35.181573][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000012d1247c
[   35.181763][   T68] RBP: ff1100000a8fc000 R08: 1fe22000025a2491 R09: ff11000008e42ed0
[   35.181946][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   35.182121][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   35.182298][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   35.182504][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.182729][   T68] CR2: 00007fc652e81f98 CR3: 000000004d34d004 CR4: 0000000000771ef0
[   35.182912][   T68] PKRU: 55555554
[   35.183002][   T68] Call Trace:
[   35.183089][   T68]  <TASK>
[   35.183151][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   35.183306][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   35.183458][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.183642][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   35.183762][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   35.183885][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   35.184002][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   35.184123][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   35.184243][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   35.184360][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.184483][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   35.184607][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   35.184730][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   35.184857][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.184974][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.185093][   T68]  process_one_work (kernel/workqueue.c:3314)
[   35.185213][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   35.185332][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.185457][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   35.185578][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.185704][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   35.185828][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   35.185945][   T68]  kthread (kernel/kthread.c:436)
[   35.186034][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.186182][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.186300][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.186421][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   35.186570][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.186699][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   35.186824][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.226022][  T315] ------------[ cut here ]------------
| [   35.226169][  T315] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/315
| [   35.226399][  T315] Modules linked in: unix_diag
| [   35.226815][  T315] Tainted: [W]=WARN
[   35.226915][  T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.227077][  T315] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.227247][  T315] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.227719][  T315] RSP: 0018:ffa0000000a67a80 EFLAGS: 00010286
[   35.227889][  T315] RAX: 00000000ffffffa6 RBX: ff1100000c8d9000 RCX: 1ff400000014cf16
[   35.228082][  T315] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c8d90bc
[   35.228280][  T315] RBP: ff11000001dd4000 R08: 1fe220000191b219 R09: ff11000009b62e80
[   35.228478][  T315] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.228676][  T315] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000001dd4000
[   35.228879][  T315] FS:  00007f0852cc0840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   35.229109][  T315] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.229274][  T315] CR2: 00007f0852ec7430 CR3: 000000000f7b1002 CR4: 0000000000771ef0
[   35.229475][  T315] PKRU: 55555554
[   35.229572][  T315] Call Trace:
[   35.229674][  T315]  <TASK>
[   35.229742][  T315]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.229879][  T315]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.230012][  T315]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.230110][  T315]  register_netdevice (net/core/dev.c:11488)
[   35.230241][  T315]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.230404][  T315]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.230539][  T315]  register_netdev (net/core/dev.c:11552)
[   35.230674][  T315]  loopback_net_init (drivers/net/loopback.c:218)
[   35.230810][  T315]  ops_init (net/core/net_namespace.c:137)
[   35.230910][  T315]  setup_net (net/core/net_namespace.c:446)
[   35.231008][  T315]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.231137][  T315]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.231267][  T315]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.231399][  T315]  copy_net_ns (net/core/net_namespace.c:579)
[   35.231534][  T315]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.231672][  T315]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.231810][  T315]  ksys_unshare (kernel/fork.c:3243)
[   35.231941][  T315]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.232073][  T315]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.232203][  T315]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.232337][  T315]  ? __ia32_sys_open (fs/open.c:1374)
[   35.232472][  T315]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.232913][  T315]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.233047][  T315]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.233177][  T315]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.233308][  T315]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.233442][  T315]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.233609][  T315] RIP: 0033:0x7f0852f82bcb
[   35.233747][  T315] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.234217][  T315] RSP: 002b:00007ffe91a829e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.234416][  T315] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0852f82bcb
[   35.234615][  T315] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.234814][  T315] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.235009][  T315] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe91a84c10
[   35.235204][  T315] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe91a86886
| [   35.238985][  T315] ------------[ cut here ]------------
| [   35.239119][  T315] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/315
| [   35.239346][  T315] Modules linked in: unix_diag
| [   35.239753][  T315] Tainted: [W]=WARN
[   35.239859][  T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.240021][  T315] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.240191][  T315] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.240664][  T315] RSP: 0018:ffa0000000a67918 EFLAGS: 00010286
[   35.240834][  T315] RAX: 00000000ffffffa6 RBX: ff11000004b1c900 RCX: 1ff400000014cee9
[   35.241030][  T315] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004b1c9bc
[   35.241225][  T315] RBP: ff11000007861000 R08: 1fe2200000963939 R09: ff11000009b62e80
[   35.241419][  T315] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.241621][  T315] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007861000
[   35.241820][  T315] FS:  00007f0852cc0840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   35.242049][  T315] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.242212][  T315] CR2: 00007f0852ec7430 CR3: 000000000f7b1002 CR4: 0000000000771ef0
[   35.242411][  T315] PKRU: 55555554
[   35.242508][  T315] Call Trace:
[   35.242610][  T315]  <TASK>
[   35.242679][  T315]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.242814][  T315]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.242945][  T315]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.243044][  T315]  register_netdevice (net/core/dev.c:11488)
[   35.243175][  T315]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.243339][  T315]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.243476][  T315]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   35.243611][  T315]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   35.243740][  T315]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   35.243874][  T315]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   35.244006][  T315]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   35.244139][  T315]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   35.244274][  T315]  ops_init (net/core/net_namespace.c:137)
[   35.244375][  T315]  setup_net (net/core/net_namespace.c:446)
[   35.244477][  T315]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.244610][  T315]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.244741][  T315]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.244877][  T315]  copy_net_ns (net/core/net_namespace.c:579)
[   35.245009][  T315]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.245142][  T315]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.245273][  T315]  ksys_unshare (kernel/fork.c:3243)
[   35.245402][  T315]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.245535][  T315]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.245670][  T315]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.245806][  T315]  ? __ia32_sys_open (fs/open.c:1374)
[   35.245937][  T315]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.246067][  T315]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.246198][  T315]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.246327][  T315]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.246461][  T315]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.246595][  T315]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.246756][  T315] RIP: 0033:0x7f0852f82bcb
[   35.246895][  T315] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.247358][  T315] RSP: 002b:00007ffe91a829e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.247558][  T315] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0852f82bcb
[   35.247755][  T315] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.247955][  T315] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.248148][  T315] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe91a84c10
[   35.248342][  T315] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe91a86886
| [   35.252151][  T315] ------------[ cut here ]------------
| [   35.252287][  T315] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/315
| [   35.252518][  T315] Modules linked in: unix_diag
| [   35.252930][  T315] Tainted: [W]=WARN
[   35.253033][  T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.253199][  T315] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.253370][  T315] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.253856][  T315] RSP: 0018:ffa0000000a678f8 EFLAGS: 00010286
[   35.254021][  T315] RAX: 00000000ffffffa6 RBX: ff1100000cfa2ac0 RCX: 1ff400000014cee5
[   35.254218][  T315] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfa2b7c
[   35.254417][  T315] RBP: ff11000005239000 R08: 1fe22000019f4571 R09: ff11000009b62e80
[   35.254618][  T315] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.254821][  T315] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005239000
[   35.255020][  T315] FS:  00007f0852cc0840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   35.255251][  T315] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.255419][  T315] CR2: 00007f0852ec7430 CR3: 000000000f7b1002 CR4: 0000000000771ef0
[   35.255626][  T315] PKRU: 55555554
[   35.255725][  T315] Call Trace:
[   35.255827][  T315]  <TASK>
[   35.255896][  T315]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.256029][  T315]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.256162][  T315]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.256263][  T315]  register_netdevice (net/core/dev.c:11488)
[   35.256399][  T315]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.256571][  T315]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   35.256717][  T315]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   35.256852][  T315]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   35.256984][  T315]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   35.257117][  T315]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   35.257251][  T315]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   35.257386][  T315]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   35.257523][  T315]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   35.257663][  T315]  vti_init_net (net/ipv4/ip_vti.c:517)
[   35.257801][  T315]  ops_init (net/core/net_namespace.c:137)
[   35.257904][  T315]  setup_net (net/core/net_namespace.c:446)
[   35.258007][  T315]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.258138][  T315]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.258271][  T315]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.258407][  T315]  copy_net_ns (net/core/net_namespace.c:579)
[   35.258547][  T315]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.258688][  T315]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.258832][  T315]  ksys_unshare (kernel/fork.c:3243)
[   35.258966][  T315]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.259100][  T315]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.259231][  T315]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.259364][  T315]  ? __ia32_sys_open (fs/open.c:1374)
[   35.259504][  T315]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.259642][  T315]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.259780][  T315]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.259914][  T315]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.260046][  T315]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.260178][  T315]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.260340][  T315] RIP: 0033:0x7f0852f82bcb
[   35.260481][  T315] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.260965][  T315] RSP: 002b:00007ffe91a829e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.261163][  T315] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0852f82bcb
[   35.261363][  T315] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.261563][  T315] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.261764][  T315] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe91a84c10
[   35.261969][  T315] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe91a86886
| [   35.266432][  T315] ------------[ cut here ]------------
| [   35.266570][  T315] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/315
| [   35.266816][  T315] Modules linked in: unix_diag
| [   35.267214][  T315] Tainted: [W]=WARN
[   35.267314][  T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.267482][  T315] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.267657][  T315] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.268129][  T315] RSP: 0018:ffa0000000a67a78 EFLAGS: 00010286
[   35.268295][  T315] RAX: 00000000ffffffa6 RBX: ff1100000cfa38c0 RCX: 1ff400000014cf15
[   35.268495][  T315] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cfa397c
[   35.268696][  T315] RBP: ff11000002919000 R08: 1fe22000019f4731 R09: ff11000009b62e80
[   35.268900][  T315] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.269096][  T315] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002919000
[   35.269293][  T315] FS:  00007f0852cc0840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   35.269528][  T315] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.269697][  T315] CR2: 00007f0852ec7430 CR3: 000000000f7b1002 CR4: 0000000000771ef0
[   35.269900][  T315] PKRU: 55555554
[   35.270000][  T315] Call Trace:
[   35.270096][  T315]  <TASK>
[   35.270164][  T315]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.270296][  T315]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.270434][  T315]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.270533][  T315]  register_netdevice (net/core/dev.c:11488)
[   35.270670][  T315]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.270837][  T315]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.270972][  T315]  register_netdev (net/core/dev.c:11552)
[   35.271103][  T315]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   35.271235][  T315]  ops_init (net/core/net_namespace.c:137)
[   35.271338][  T315]  setup_net (net/core/net_namespace.c:446)
[   35.271441][  T315]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.271572][  T315]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.271708][  T315]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.271845][  T315]  copy_net_ns (net/core/net_namespace.c:579)
[   35.271976][  T315]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.272109][  T315]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.272241][  T315]  ksys_unshare (kernel/fork.c:3243)
[   35.272373][  T315]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.272508][  T315]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.272646][  T315]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.272784][  T315]  ? __ia32_sys_open (fs/open.c:1374)
[   35.272919][  T315]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.273050][  T315]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.273183][  T315]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.273314][  T315]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.273449][  T315]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.273580][  T315]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.273748][  T315] RIP: 0033:0x7f0852f82bcb
[   35.273891][  T315] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.274355][  T315] RSP: 002b:00007ffe91a829e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.274557][  T315] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0852f82bcb
[   35.274759][  T315] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.274962][  T315] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.275161][  T315] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe91a84c10
[   35.275359][  T315] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe91a86886
| [   35.279450][  T315] ------------[ cut here ]------------
| [   35.279605][  T315] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/315
| [   35.279837][  T315] Modules linked in: unix_diag
| [   35.280265][  T315] Tainted: [W]=WARN
[   35.280369][  T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.280538][  T315] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.280721][  T315] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.281194][  T315] RSP: 0018:ffa0000000a67a68 EFLAGS: 00010286
[   35.281362][  T315] RAX: 00000000ffffffa6 RBX: ff1100000b8d6040 RCX: 1ff400000014cf13
[   35.281562][  T315] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b8d60fc
[   35.281764][  T315] RBP: ff11000008c19000 R08: 1fe220000171ac21 R09: ff11000009b62e80
[   35.281969][  T315] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.282167][  T315] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c19000
[   35.282366][  T315] FS:  00007f0852cc0840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   35.282607][  T315] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.282780][  T315] CR2: 00007f0852ec7430 CR3: 000000000f7b1002 CR4: 0000000000771ef0
[   35.282986][  T315] PKRU: 55555554
[   35.283085][  T315] Call Trace:
[   35.283184][  T315]  <TASK>
[   35.283252][  T315]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.283383][  T315]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.283517][  T315]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.283623][  T315]  register_netdevice (net/core/dev.c:11488)
[   35.283756][  T315]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.283932][  T315]  register_netdev (net/core/dev.c:11552)
[   35.284066][  T315]  sit_init_net (net/ipv6/sit.c:1860)
[   35.284205][  T315]  ops_init (net/core/net_namespace.c:137)
[   35.284306][  T315]  setup_net (net/core/net_namespace.c:446)
[   35.284406][  T315]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.284561][  T315]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.284695][  T315]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.284834][  T315]  copy_net_ns (net/core/net_namespace.c:579)
[   35.284973][  T315]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.285108][  T315]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.285240][  T315]  ksys_unshare (kernel/fork.c:3243)
[   35.285371][  T315]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.285506][  T315]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.285642][  T315]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.285794][  T315]  ? __ia32_sys_open (fs/open.c:1374)
[   35.285930][  T315]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.286063][  T315]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.286196][  T315]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.286328][  T315]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.286462][  T315]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.286597][  T315]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.286761][  T315] RIP: 0033:0x7f0852f82bcb
[   35.286901][  T315] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.287369][  T315] RSP: 002b:00007ffe91a829e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.287570][  T315] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0852f82bcb
[   35.287775][  T315] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.287972][  T315] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.288167][  T315] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe91a84c10
[   35.288361][  T315] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe91a86886
| [   35.305796][  T315] ------------[ cut here ]------------
| [   35.305938][  T315] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/315
| [   35.306168][  T315] Modules linked in: unix_diag
| [   35.306573][  T315] Tainted: [W]=WARN
[   35.306678][  T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.306846][  T315] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.307019][  T315] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.307486][  T315] RSP: 0018:ffa0000000a67a78 EFLAGS: 00010286
[   35.307656][  T315] RAX: 00000000ffffffa6 RBX: ff1100000c7ddc40 RCX: 1ff400000014cf15
[   35.307855][  T315] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c7ddcfc
[   35.308057][  T315] RBP: ff1100000a8f4000 R08: 1fe22000018fbba1 R09: ff11000009b62e80
[   35.308253][  T315] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   35.308451][  T315] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a8f4000
[   35.308653][  T315] FS:  00007f0852cc0840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   35.308887][  T315] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.309054][  T315] CR2: 00007f0852ec7430 CR3: 000000000f7b1002 CR4: 0000000000771ef0
[   35.309252][  T315] PKRU: 55555554
[   35.309351][  T315] Call Trace:
[   35.309452][  T315]  <TASK>
[   35.309519][  T315]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.309655][  T315]  ? notifier_call_chain (kernel/notifier.c:85)
[   35.309791][  T315]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.309893][  T315]  register_netdevice (net/core/dev.c:11488)
[   35.310024][  T315]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   35.310189][  T315]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.310321][  T315]  register_netdev (net/core/dev.c:11552)
[   35.310452][  T315]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   35.310589][  T315]  ops_init (net/core/net_namespace.c:137)
[   35.310689][  T315]  setup_net (net/core/net_namespace.c:446)
[   35.310796][  T315]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   35.310926][  T315]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   35.311058][  T315]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   35.311190][  T315]  copy_net_ns (net/core/net_namespace.c:579)
[   35.311321][  T315]  create_new_namespaces (kernel/nsproxy.c:132)
[   35.311456][  T315]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   35.311593][  T315]  ksys_unshare (kernel/fork.c:3243)
[   35.311726][  T315]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   35.311865][  T315]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   35.311998][  T315]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   35.312129][  T315]  ? __ia32_sys_open (fs/open.c:1374)
[   35.312262][  T315]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   35.312392][  T315]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   35.312526][  T315]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.312685][  T315]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.312819][  T315]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.312950][  T315]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.313111][  T315] RIP: 0033:0x7f0852f82bcb
[   35.313247][  T315] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   35.313724][  T315] RSP: 002b:00007ffe91a829e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   35.313926][  T315] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f0852f82bcb
[   35.314119][  T315] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   35.314313][  T315] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   35.314514][  T315] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe91a84c10
[   35.314713][  T315] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe91a86886
| [   35.338236][  T316] ------------[ cut here ]------------
| [   35.338420][  T316] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/316
| [   35.338714][  T316] Modules linked in: unix_diag
| [   35.339214][  T316] Tainted: [W]=WARN
[   35.339358][  T316] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.339575][  T316] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   35.339811][  T316] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   35.340318][  T316] RSP: 0018:ffa0000000b57020 EFLAGS: 00010286
[   35.340537][  T316] RAX: 00000000ffffffa6 RBX: ff11000004d94900 RCX: 1ff400000016adca
[   35.340796][  T316] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004d949bc
[   35.341039][  T316] RBP: ff11000001dd4000 R08: 1fe22000009b2939 R09: ff1100000ea12e58
[   35.341278][  T316] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   35.341523][  T316] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   35.341784][  T316] FS:  00007f7772c05840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   35.342064][  T316] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.342273][  T316] CR2: 00000000075d2988 CR3: 0000000004ab8004 CR4: 0000000000771ef0
[   35.342522][  T316] PKRU: 55555554
[   35.342677][  T316] Call Trace:
[   35.342831][  T316]  <TASK>
[   35.342946][  T316]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   35.343127][  T316]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   35.343278][  T316]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   35.343460][  T316]  __dev_notify_flags (net/core/dev.c:9787)
[   35.343654][  T316]  ? netif_change_name (net/core/dev.c:1495)
[   35.343840][  T316]  ? __dev_change_flags (net/core/dev.c:9752)
[   35.344020][  T316]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   35.344198][  T316]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.344377][  T316]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   35.344563][  T316]  netif_change_flags (net/core/dev.c:9820)
[   35.344753][  T316]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   35.344937][  T316]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   35.345116][  T316]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   35.345292][  T316]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   35.345511][  T316]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.345700][  T316]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   35.345884][  T316]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   35.346066][  T316]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   35.346244][  T316]  ? __kernel_text_address (kernel/extable.c:79)
[   35.346424][  T316]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   35.346619][  T316]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.346802][  T316]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   35.346985][  T316]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.347162][  T316]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   35.347338][  T316]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.347522][  T316]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.347714][  T316]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   35.347899][  T316]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   35.348076][  T316]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   35.348255][  T316]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   35.348438][  T316]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   35.348632][  T316]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   35.348821][  T316]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   35.349003][  T316]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.349177][  T316]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.349354][  T316]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   35.349539][  T316]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   35.349728][  T316]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.349920][  T316]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.350099][  T316]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.350276][  T316]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   35.350461][  T316]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   35.350653][  T316]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   35.350840][  T316]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   35.351021][  T316]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   35.351205][  T316]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.351383][  T316]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   35.351567][  T316]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   35.351754][  T316]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.351941][  T316]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   35.352119][  T316]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.352297][  T316]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   35.352488][  T316]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   35.352695][  T316]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   35.352891][  T316]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   35.353073][  T316]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   35.353251][  T316]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   35.353434][  T316]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   35.353629][  T316]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   35.353817][  T316]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   35.354004][  T316]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   35.354191][  T316]  ? copy_msghdr_from_user (net/socket.c:2635)
[   35.354368][  T316]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   35.354597][  T316]  ? move_addr_to_kernel (net/socket.c:258)
[   35.354784][  T316]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   35.354963][  T316]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   35.355142][  T316]  ___sys_sendmsg (net/socket.c:2752)
[   35.355320][  T316]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   35.355542][  T316]  ? copy_msghdr_from_user (net/socket.c:2603)
[   35.355746][  T316]  __sys_sendmsg (net/socket.c:2784)
[   35.355936][  T316]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   35.356114][  T316]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   35.356327][  T316]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   35.356516][  T316]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   35.356710][  T316]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.356900][  T316]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   35.357080][  T316]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   35.357262][  T316]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.357481][  T316] RIP: 0033:0x7f7772e3f08e
[   35.357680][  T316] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   35.358203][  T316] RSP: 002b:00007ffd24fab360 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   35.358453][  T316] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f7772e3f08e
[   35.358709][  T316] RDX: 0000000000000000 RSI: 00007ffd24fab410 RDI: 0000000000000005
[   35.358960][  T316] RBP: 00007ffd24fab370 R08: 0000000000000000 R09: 0000000000000000
[   35.359207][  T316] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d66c
[   35.359454][  T316] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd24fabae0
| [   40.595566][   T68] ------------[ cut here ]------------
| [   40.596048][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   40.596294][   T68] Modules linked in: unix_diag
| [   40.596706][   T68] Tainted: [W]=WARN
[   40.596801][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.596953][   T68] Workqueue: netns cleanup_net
[   40.597080][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.597238][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.597676][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   40.597836][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c451000 RCX: 1ff4000000092eed
[   40.598013][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4510bc
[   40.598195][   T68] RBP: ff1100000a8f4000 R08: 1fe220000188a219 R09: ff11000008e42ed0
[   40.598372][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   40.598561][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   40.598752][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   40.598977][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.599129][   T68] CR2: 00007fd6496ea430 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   40.599308][   T68] PKRU: 55555554
[   40.599398][   T68] Call Trace:
[   40.599493][   T68]  <TASK>
[   40.599557][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   40.599715][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   40.599867][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   40.599992][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   40.600117][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   40.600237][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   40.600357][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   40.600509][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   40.600639][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   40.600759][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.600890][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   40.601007][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   40.601123][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   40.601244][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.601362][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.601490][   T68]  process_one_work (kernel/workqueue.c:3314)
[   40.601619][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   40.601740][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.601870][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   40.601989][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.602107][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   40.602228][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.602346][   T68]  kthread (kernel/kthread.c:436)
[   40.602440][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.602592][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.602711][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   40.602839][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   40.602994][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   40.603115][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.603235][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   40.605725][   T68] ------------[ cut here ]------------
| [   40.605848][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   40.606154][   T68] Modules linked in: unix_diag
| [   40.606568][   T68] Tainted: [W]=WARN
[   40.607272][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.607422][   T68] Workqueue: netns cleanup_net
[   40.607545][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.607760][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.608199][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   40.608347][   T68] RAX: 00000000ffffffa6 RBX: ff1100000971be00 RCX: 1ff4000000092eed
[   40.608530][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000971bebc
[   40.608761][   T68] RBP: ff11000008c19000 R08: 1fe22000012e37d9 R09: ff11000008e42ed0
[   40.608988][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   40.609164][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   40.609343][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   40.609555][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.609709][   T68] CR2: 00007fd6496ea430 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   40.609892][   T68] PKRU: 55555554
[   40.609981][   T68] Call Trace:
[   40.610070][   T68]  <TASK>
[   40.610132][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   40.610291][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   40.610460][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   40.610578][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   40.610708][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   40.610830][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   40.610967][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   40.611103][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   40.611230][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   40.611353][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.611486][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   40.611610][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   40.611740][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   40.611936][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.612056][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.612202][   T68]  process_one_work (kernel/workqueue.c:3314)
[   40.612323][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   40.612517][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.612646][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   40.612766][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.612889][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   40.613078][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.613194][   T68]  kthread (kernel/kthread.c:436)
[   40.613285][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.613434][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.613629][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   40.613746][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   40.613901][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   40.614091][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.614211][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   40.616867][   T68] ------------[ cut here ]------------
| [   40.616990][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   40.617289][   T68] Modules linked in: unix_diag
| [   40.617757][   T68] Tainted: [W]=WARN
[   40.617852][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.618000][   T68] Workqueue: netns cleanup_net
[   40.618122][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.618277][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.618769][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   40.618925][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c451c40 RCX: 1ff4000000092eed
[   40.619100][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c451cfc
[   40.619276][   T68] RBP: ff11000002919000 R08: 1fe220000188a3a1 R09: ff11000008e42ed0
[   40.619454][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   40.619681][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   40.619908][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   40.620114][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.620261][   T68] CR2: 00007fd6496ea430 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   40.620443][   T68] PKRU: 55555554
[   40.620533][   T68] Call Trace:
[   40.620695][   T68]  <TASK>
[   40.620756][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   40.620913][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   40.621059][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   40.621176][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   40.621293][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   40.621417][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   40.621539][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   40.621765][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   40.621886][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   40.622056][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.622176][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   40.622294][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   40.622414][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   40.622534][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.622732][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.622857][   T68]  process_one_work (kernel/workqueue.c:3314)
[   40.622978][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   40.623095][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.623218][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   40.623337][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.623458][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   40.623578][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.623750][   T68]  kthread (kernel/kthread.c:436)
[   40.623844][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.623990][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.624109][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   40.624228][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   40.624375][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   40.624496][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.624666][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   40.628236][   T68] ------------[ cut here ]------------
| [   40.628370][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   40.628634][   T68] Modules linked in: unix_diag
| [   40.629030][   T68] Tainted: [W]=WARN
[   40.629121][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.629272][   T68] Workqueue: netns cleanup_net
[   40.629399][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.629556][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.630042][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   40.630191][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b618580 RCX: 1ff4000000092eed
[   40.630368][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b61863c
[   40.630546][   T68] RBP: ff11000005239000 R08: 1fe22000016c30c9 R09: ff11000008e42ed0
[   40.630752][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   40.630934][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   40.631115][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   40.631326][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.631478][   T68] CR2: 00007f5a168a5f98 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   40.631662][   T68] PKRU: 55555554
[   40.631750][   T68] Call Trace:
[   40.631845][   T68]  <TASK>
[   40.631909][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   40.632062][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   40.632214][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   40.632336][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   40.632459][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   40.632578][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   40.632704][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   40.632829][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   40.632947][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   40.633063][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.633184][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   40.633301][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   40.633418][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   40.633537][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.633660][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.633779][   T68]  process_one_work (kernel/workqueue.c:3314)
[   40.633906][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   40.634026][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.634147][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   40.634270][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.634387][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   40.634512][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.634634][   T68]  kthread (kernel/kthread.c:436)
[   40.634723][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.634874][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.634992][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   40.635109][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   40.635257][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   40.635375][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.635496][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   40.637868][   T68] ------------[ cut here ]------------
| [   40.638042][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   40.638286][   T68] Modules linked in: unix_diag
| [   40.638748][   T68] Tainted: [W]=WARN
[   40.638843][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.639003][   T68] Workqueue: netns cleanup_net
[   40.639125][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.639275][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.639805][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   40.639988][   T68] RAX: 00000000ffffffa6 RBX: ff110000027c5e00 RCX: 1ff4000000092eed
[   40.640160][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000027c5ebc
[   40.640334][   T68] RBP: ff11000007861000 R08: 1fe22000004f8bd9 R09: ff11000008e42ed0
[   40.640508][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   40.640684][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   40.640863][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   40.641064][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.641210][   T68] CR2: 00007f5a168a5f98 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   40.641384][   T68] PKRU: 55555554
[   40.641473][   T68] Call Trace:
[   40.641566][   T68]  <TASK>
[   40.641633][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   40.641781][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   40.641939][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   40.642056][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   40.642174][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   40.642290][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   40.642408][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   40.642543][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   40.642666][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   40.642783][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.642913][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   40.643030][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   40.643147][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   40.643263][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.643380][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.643500][   T68]  process_one_work (kernel/workqueue.c:3314)
[   40.643628][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   40.643744][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.643873][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   40.643990][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.644108][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   40.644224][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.644339][   T68]  kthread (kernel/kthread.c:436)
[   40.644429][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.644573][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.644697][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   40.644819][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   40.644965][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   40.645079][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.645195][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   40.657802][   T68] ------------[ cut here ]------------
| [   40.657931][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   40.658180][   T68] Modules linked in: unix_diag
| [   40.658603][   T68] Tainted: [W]=WARN
[   40.658697][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.658858][   T68] Workqueue: netns cleanup_net
[   40.658988][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.659149][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.659597][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   40.659756][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c5e8900 RCX: 1ff4000000092eaf
[   40.659949][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c5e89bc
[   40.660133][   T68] RBP: ff11000001dd4000 R08: 1fe22000018bd139 R09: ff11000008e42ed0
[   40.660319][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   40.660505][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   40.660699][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   40.660928][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.661081][   T68] CR2: 00007fd6496ea430 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   40.661268][   T68] PKRU: 55555554
[   40.661362][   T68] Call Trace:
[   40.661457][   T68]  <TASK>
[   40.661522][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.661657][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.661751][   T68]  netif_close_many (net/core/dev.c:1804)
[   40.661881][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.662004][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.662127][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.662253][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   40.662378][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   40.662536][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   40.662708][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   40.662842][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   40.662968][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   40.663091][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   40.663246][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   40.663372][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   40.663502][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   40.663629][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   40.663752][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   40.663883][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   40.664037][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   40.664159][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.664286][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   40.664427][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   40.664550][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   40.664681][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.664811][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.664935][   T68]  process_one_work (kernel/workqueue.c:3314)
[   40.665064][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   40.665186][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.665313][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   40.665454][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.665577][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   40.665711][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.665842][   T68]  kthread (kernel/kthread.c:436)
[   40.665935][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.666090][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.666214][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   40.666337][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   40.666494][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   40.666621][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.666745][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   40.668856][   T68] ------------[ cut here ]------------
| [   40.668975][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   40.669209][   T68] Modules linked in: unix_diag
| [   40.670067][   T68] Tainted: [W]=WARN
[   40.670161][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.670311][   T68] Workqueue: netns cleanup_net
[   40.670437][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.670651][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.671086][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   40.671235][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c4518c0 RCX: 1ff4000000092ed5
[   40.671428][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c45197c
[   40.671652][   T68] RBP: ff11000001dd4000 R08: 1fe220000188a331 R09: ff11000008e42ed0
[   40.671835][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   40.672014][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   40.672190][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   40.672403][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.672559][   T68] CR2: 00007fd6496ea430 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   40.672818][   T68] PKRU: 55555554
[   40.672907][   T68] Call Trace:
[   40.672999][   T68]  <TASK>
[   40.673061][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   40.673216][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   40.673370][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   40.673494][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   40.673664][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   40.673788][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   40.673908][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   40.674030][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   40.674152][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   40.674271][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.674393][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   40.674516][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   40.674698][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   40.674824][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.674948][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.675069][   T68]  process_one_work (kernel/workqueue.c:3314)
[   40.675192][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   40.675311][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.675440][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   40.675561][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.675751][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   40.675877][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   40.675999][   T68]  kthread (kernel/kthread.c:436)
[   40.676089][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.676239][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.676361][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   40.676484][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   40.676688][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   40.676815][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   40.676937][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   40.706718][  T332] ------------[ cut here ]------------
| [   40.706892][  T332] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/332
| [   40.707127][  T332] Modules linked in: unix_diag
| [   40.707533][  T332] Tainted: [W]=WARN
[   40.708148][  T332] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.708314][  T332] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.708488][  T332] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.708967][  T332] RSP: 0018:ffa0000000b47a80 EFLAGS: 00010286
[   40.709131][  T332] RAX: 00000000ffffffa6 RBX: ff110000124be040 RCX: 1ff4000000168f16
[   40.709328][  T332] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000124be0fc
[   40.709529][  T332] RBP: ff110000086c1000 R08: 1fe2200002497c21 R09: ff11000005305180
[   40.709728][  T332] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   40.709926][  T332] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000086c1000
[   40.710124][  T332] FS:  00007f898bcdb840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   40.710355][  T332] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.710520][  T332] CR2: 00007f898bedcc20 CR3: 0000000010f9e005 CR4: 0000000000771ef0
[   40.710721][  T332] PKRU: 55555554
[   40.710823][  T332] Call Trace:
[   40.710921][  T332]  <TASK>
[   40.710988][  T332]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.711119][  T332]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.711252][  T332]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.711352][  T332]  register_netdevice (net/core/dev.c:11488)
[   40.711486][  T332]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.711655][  T332]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   40.711792][  T332]  register_netdev (net/core/dev.c:11552)
[   40.711923][  T332]  loopback_net_init (drivers/net/loopback.c:218)
[   40.712057][  T332]  ops_init (net/core/net_namespace.c:137)
[   40.712159][  T332]  setup_net (net/core/net_namespace.c:446)
[   40.712258][  T332]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.712388][  T332]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.712522][  T332]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.712662][  T332]  copy_net_ns (net/core/net_namespace.c:579)
[   40.712801][  T332]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.712935][  T332]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.713072][  T332]  ksys_unshare (kernel/fork.c:3243)
[   40.713204][  T332]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.713336][  T332]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.713473][  T332]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.713614][  T332]  ? __ia32_sys_open (fs/open.c:1374)
[   40.713746][  T332]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.713884][  T332]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.714016][  T332]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.714146][  T332]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.714277][  T332]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.714413][  T332]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.714576][  T332] RIP: 0033:0x7f898bf9dbcb
[   40.714722][  T332] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.715197][  T332] RSP: 002b:00007fffef412398 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   40.715394][  T332] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f898bf9dbcb
[   40.715596][  T332] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.715796][  T332] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.715998][  T332] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffef4145c0
[   40.716193][  T332] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffef415886
| [   40.724240][  T332] ------------[ cut here ]------------
| [   40.724378][  T332] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/332
| [   40.724614][  T332] Modules linked in: unix_diag
| [   40.725016][  T332] Tainted: [W]=WARN
[   40.725113][  T332] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.725274][  T332] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.725444][  T332] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.725918][  T332] RSP: 0018:ffa0000000b47918 EFLAGS: 00010286
[   40.726080][  T332] RAX: 00000000ffffffa6 RBX: ff1100000c7211c0 RCX: 1ff4000000168ee9
[   40.726271][  T332] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c72127c
[   40.726467][  T332] RBP: ff11000007869000 R08: 1fe22000018e4251 R09: ff11000005305180
[   40.726664][  T332] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   40.726863][  T332] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007869000
[   40.727062][  T332] FS:  00007f898bcdb840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   40.727291][  T332] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.727454][  T332] CR2: 00007f898bedcc20 CR3: 0000000010f9e005 CR4: 0000000000771ef0
[   40.727654][  T332] PKRU: 55555554
[   40.727751][  T332] Call Trace:
[   40.727853][  T332]  <TASK>
[   40.727920][  T332]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.728050][  T332]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.728181][  T332]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.728280][  T332]  register_netdevice (net/core/dev.c:11488)
[   40.728413][  T332]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.728576][  T332]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   40.728713][  T332]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   40.728849][  T332]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   40.728978][  T332]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   40.729109][  T332]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   40.729241][  T332]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   40.729374][  T332]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   40.729511][  T332]  ops_init (net/core/net_namespace.c:137)
[   40.729616][  T332]  setup_net (net/core/net_namespace.c:446)
[   40.729715][  T332]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.729849][  T332]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.729980][  T332]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.730111][  T332]  copy_net_ns (net/core/net_namespace.c:579)
[   40.730243][  T332]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.730376][  T332]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.730511][  T332]  ksys_unshare (kernel/fork.c:3243)
[   40.730648][  T332]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.730777][  T332]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.730913][  T332]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.731044][  T332]  ? __ia32_sys_open (fs/open.c:1374)
[   40.731176][  T332]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.731305][  T332]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.731440][  T332]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.731571][  T332]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.731706][  T332]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.731842][  T332]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.732004][  T332] RIP: 0033:0x7f898bf9dbcb
[   40.732139][  T332] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.732608][  T332] RSP: 002b:00007fffef412398 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   40.732811][  T332] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f898bf9dbcb
[   40.733004][  T332] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.733198][  T332] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.733390][  T332] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffef4145c0
[   40.733591][  T332] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffef415886
| [   40.737867][  T332] ------------[ cut here ]------------
| [   40.738004][  T332] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/332
| [   40.738231][  T332] Modules linked in: unix_diag
| [   40.738636][  T332] Tainted: [W]=WARN
[   40.738735][  T332] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.738904][  T332] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.739073][  T332] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.739543][  T332] RSP: 0018:ffa0000000b478f8 EFLAGS: 00010286
[   40.739713][  T332] RAX: 00000000ffffffa6 RBX: ff1100000bc56ac0 RCX: 1ff4000000168ee5
[   40.739912][  T332] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc56b7c
[   40.740109][  T332] RBP: ff11000007fa1000 R08: 1fe220000178ad71 R09: ff11000005305180
[   40.740305][  T332] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   40.740504][  T332] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007fa1000
[   40.740705][  T332] FS:  00007f898bcdb840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   40.740940][  T332] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.741104][  T332] CR2: 00007f898bedcc20 CR3: 0000000010f9e005 CR4: 0000000000771ef0
[   40.741303][  T332] PKRU: 55555554
[   40.741402][  T332] Call Trace:
[   40.741503][  T332]  <TASK>
[   40.741571][  T332]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.741707][  T332]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.741844][  T332]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.741944][  T332]  register_netdevice (net/core/dev.c:11488)
[   40.742078][  T332]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.742243][  T332]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   40.742376][  T332]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   40.742510][  T332]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   40.742647][  T332]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   40.742778][  T332]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   40.742917][  T332]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   40.743050][  T332]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   40.743182][  T332]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   40.743314][  T332]  vti_init_net (net/ipv4/ip_vti.c:517)
[   40.743448][  T332]  ops_init (net/core/net_namespace.c:137)
[   40.743549][  T332]  setup_net (net/core/net_namespace.c:446)
[   40.743654][  T332]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.743789][  T332]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.743920][  T332]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.744052][  T332]  copy_net_ns (net/core/net_namespace.c:579)
[   40.744186][  T332]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.744319][  T332]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.744453][  T332]  ksys_unshare (kernel/fork.c:3243)
[   40.744586][  T332]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.744718][  T332]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.744854][  T332]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.744985][  T332]  ? __ia32_sys_open (fs/open.c:1374)
[   40.745119][  T332]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.745249][  T332]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.745380][  T332]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.745513][  T332]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.745648][  T332]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.745779][  T332]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.745946][  T332] RIP: 0033:0x7f898bf9dbcb
[   40.746082][  T332] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.746550][  T332] RSP: 002b:00007fffef412398 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   40.746753][  T332] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f898bf9dbcb
[   40.747044][  T332] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.747240][  T332] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.747437][  T332] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffef4145c0
[   40.747725][  T332] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffef415886
| [   40.752066][  T332] ------------[ cut here ]------------
| [   40.752203][  T332] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/332
| [   40.752431][  T332] Modules linked in: unix_diag
| [   40.752927][  T332] Tainted: [W]=WARN
[   40.753026][  T332] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.753278][  T332] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.753452][  T332] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.754015][  T332] RSP: 0018:ffa0000000b47a78 EFLAGS: 00010286
[   40.754180][  T332] RAX: 00000000ffffffa6 RBX: ff1100000bc56200 RCX: 1ff4000000168f15
[   40.754375][  T332] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc562bc
[   40.754666][  T332] RBP: ff11000008c39000 R08: 1fe220000178ac59 R09: ff11000005305180
[   40.754863][  T332] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   40.755142][  T332] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c39000
[   40.755338][  T332] FS:  00007f898bcdb840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   40.755572][  T332] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.755833][  T332] CR2: 00007f898bedcc20 CR3: 0000000010f9e005 CR4: 0000000000771ef0
[   40.756030][  T332] PKRU: 55555554
[   40.756127][  T332] Call Trace:
[   40.756225][  T332]  <TASK>
[   40.756377][  T332]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.756510][  T332]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.756647][  T332]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.756746][  T332]  register_netdevice (net/core/dev.c:11488)
[   40.756885][  T332]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.757127][  T332]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.757259][  T332]  register_netdev (net/core/dev.c:11552)
[   40.757390][  T332]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   40.757614][  T332]  ops_init (net/core/net_namespace.c:137)
[   40.757714][  T332]  setup_net (net/core/net_namespace.c:446)
[   40.757818][  T332]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.757945][  T332]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.758075][  T332]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.758291][  T332]  copy_net_ns (net/core/net_namespace.c:579)
[   40.758424][  T332]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.758556][  T332]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.758692][  T332]  ksys_unshare (kernel/fork.c:3243)
[   40.758909][  T332]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.759037][  T332]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.759166][  T332]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.759296][  T332]  ? __ia32_sys_open (fs/open.c:1374)
[   40.759518][  T332]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.759652][  T332]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.759780][  T332]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.759915][  T332]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.760129][  T332]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.760259][  T332]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.760420][  T332] RIP: 0033:0x7f898bf9dbcb
[   40.760554][  T332] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.761116][  T332] RSP: 002b:00007fffef412398 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   40.761397][  T332] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f898bf9dbcb
[   40.761596][  T332] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.761794][  T332] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.762074][  T332] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffef4145c0
[   40.762267][  T332] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffef415886
| [   40.766771][  T332] ------------[ cut here ]------------
| [   40.766913][  T332] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/332
| [   40.767136][  T332] Modules linked in: unix_diag
| [   40.767621][  T332] Tainted: [W]=WARN
[   40.767720][  T332] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.767978][  T332] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.768147][  T332] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.768707][  T332] RSP: 0018:ffa0000000b47a68 EFLAGS: 00010286
[   40.768881][  T332] RAX: 00000000ffffffa6 RBX: ff1100000c7dc900 RCX: 1ff4000000168f13
[   40.769073][  T332] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c7dc9bc
[   40.769355][  T332] RBP: ff1100000a99c000 R08: 1fe22000018fb939 R09: ff11000005305180
[   40.769553][  T332] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   40.769845][  T332] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a99c000
[   40.770043][  T332] FS:  00007f898bcdb840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   40.770270][  T332] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.770523][  T332] CR2: 00007f898bedcc20 CR3: 0000000010f9e005 CR4: 0000000000771ef0
[   40.770724][  T332] PKRU: 55555554
[   40.770830][  T332] Call Trace:
[   40.770927][  T332]  <TASK>
[   40.771079][  T332]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.771209][  T332]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.771339][  T332]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.771442][  T332]  register_netdevice (net/core/dev.c:11488)
[   40.771574][  T332]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.771745][  T332]  register_netdev (net/core/dev.c:11552)
[   40.771882][  T332]  sit_init_net (net/ipv6/sit.c:1860)
[   40.772013][  T332]  ops_init (net/core/net_namespace.c:137)
[   40.772113][  T332]  setup_net (net/core/net_namespace.c:446)
[   40.772298][  T332]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.772431][  T332]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.772562][  T332]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.772697][  T332]  copy_net_ns (net/core/net_namespace.c:579)
[   40.772920][  T332]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.773053][  T332]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.773185][  T332]  ksys_unshare (kernel/fork.c:3243)
[   40.773315][  T332]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.773536][  T332]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.773670][  T332]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.773808][  T332]  ? __ia32_sys_open (fs/open.c:1374)
[   40.773943][  T332]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.774157][  T332]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.774286][  T332]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.774417][  T332]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.774547][  T332]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.774682][  T332]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.774847][  T332] RIP: 0033:0x7f898bf9dbcb
[   40.774981][  T332] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.775541][  T332] RSP: 002b:00007fffef412398 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   40.775832][  T332] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f898bf9dbcb
[   40.776031][  T332] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.776229][  T332] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.776426][  T332] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffef4145c0
[   40.776626][  T332] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffef415886
| [   40.781306][  T332] ------------[ cut here ]------------
| [   40.781445][  T332] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/332
| [   40.781762][  T332] Modules linked in: unix_diag
| [   40.782254][  T332] Tainted: [W]=WARN
[   40.782353][  T332] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.782518][  T332] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.782691][  T332] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.783250][  T332] RSP: 0018:ffa0000000b47a78 EFLAGS: 00010286
[   40.783505][  T332] RAX: 00000000ffffffa6 RBX: ff1100000a2efa80 RCX: 1ff4000000168f15
[   40.783705][  T332] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2efb3c
[   40.783906][  T332] RBP: ff1100000916c000 R08: 1fe220000145df69 R09: ff11000005305180
[   40.784189][  T332] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   40.784382][  T332] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000916c000
[   40.784585][  T332] FS:  00007f898bcdb840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   40.784909][  T332] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.785074][  T332] CR2: 00007f898bedcc20 CR3: 0000000010f9e005 CR4: 0000000000771ef0
[   40.785359][  T332] PKRU: 55555554
[   40.785461][  T332] Call Trace:
[   40.785558][  T332]  <TASK>
[   40.785630][  T332]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.785761][  T332]  ? notifier_call_chain (kernel/notifier.c:85)
[   40.785982][  T332]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.786082][  T332]  register_netdevice (net/core/dev.c:11488)
[   40.786217][  T332]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   40.786379][  T332]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.786605][  T332]  register_netdev (net/core/dev.c:11552)
[   40.786738][  T332]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   40.786876][  T332]  ops_init (net/core/net_namespace.c:137)
[   40.786976][  T332]  setup_net (net/core/net_namespace.c:446)
[   40.787075][  T332]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   40.787292][  T332]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   40.787423][  T332]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   40.787554][  T332]  copy_net_ns (net/core/net_namespace.c:579)
[   40.787691][  T332]  create_new_namespaces (kernel/nsproxy.c:132)
[   40.787915][  T332]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   40.788046][  T332]  ksys_unshare (kernel/fork.c:3243)
[   40.788176][  T332]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   40.788308][  T332]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   40.788528][  T332]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   40.788662][  T332]  ? __ia32_sys_open (fs/open.c:1374)
[   40.788800][  T332]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   40.788930][  T332]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   40.789148][  T332]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.789279][  T332]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.789411][  T332]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.789545][  T332]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.789712][  T332] RIP: 0033:0x7f898bf9dbcb
[   40.789853][  T332] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   40.790422][  T332] RSP: 002b:00007fffef412398 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   40.790625][  T332] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f898bf9dbcb
[   40.790912][  T332] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   40.791106][  T332] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   40.791300][  T332] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffef4145c0
[   40.791592][  T332] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fffef415886
| [   40.823240][  T333] ------------[ cut here ]------------
| [   40.823388][  T333] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/333
| [   40.823627][  T333] Modules linked in: unix_diag
| [   40.824034][  T333] Tainted: [W]=WARN
[   40.824133][  T333] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.824296][  T333] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   40.824470][  T333] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   40.824952][  T333] RSP: 0018:ffa0000000bd7020 EFLAGS: 00010286
[   40.825117][  T333] RAX: 00000000ffffffa6 RBX: ff1100001305f700 RCX: 1ff400000017adca
[   40.825310][  T333] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100001305f7bc
[   40.825511][  T333] RBP: ff110000086c1000 R08: 1fe220000260bef9 R09: ff11000005b28b58
[   40.825711][  T333] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   40.825911][  T333] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   40.826107][  T333] FS:  00007ffbefec7840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   40.826334][  T333] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.826504][  T333] CR2: 000000001088e988 CR3: 0000000009aac001 CR4: 0000000000771ef0
[   40.826705][  T333] PKRU: 55555554
[   40.826809][  T333] Call Trace:
[   40.826907][  T333]  <TASK>
[   40.826975][  T333]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   40.827107][  T333]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   40.827206][  T333]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   40.827338][  T333]  __dev_notify_flags (net/core/dev.c:9787)
[   40.827473][  T333]  ? netif_change_name (net/core/dev.c:1495)
[   40.827610][  T333]  ? __dev_change_flags (net/core/dev.c:9752)
[   40.827742][  T333]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   40.827878][  T333]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.828009][  T333]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   40.828141][  T333]  netif_change_flags (net/core/dev.c:9820)
[   40.828273][  T333]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   40.828403][  T333]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   40.828540][  T333]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   40.828678][  T333]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   40.828849][  T333]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   40.828978][  T333]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.829110][  T333]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   40.829242][  T333]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   40.829374][  T333]  ? __kernel_text_address (kernel/extable.c:79)
[   40.829509][  T333]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.829648][  T333]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.829776][  T333]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   40.829914][  T333]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.830045][  T333]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   40.830173][  T333]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.830303][  T333]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.830435][  T333]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   40.830566][  T333]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   40.830701][  T333]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   40.830837][  T333]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   40.830972][  T333]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   40.831106][  T333]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   40.831238][  T333]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   40.831369][  T333]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.831502][  T333]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.831639][  T333]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.831770][  T333]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   40.831907][  T333]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.832040][  T333]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.832170][  T333]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.832298][  T333]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.832431][  T333]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   40.832563][  T333]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   40.832698][  T333]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   40.832832][  T333]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.832961][  T333]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.833089][  T333]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.833220][  T333]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   40.833348][  T333]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   40.833482][  T333]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   40.833617][  T333]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.833747][  T333]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   40.833885][  T333]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   40.834014][  T333]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   40.834147][  T333]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   40.834277][  T333]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   40.834408][  T333]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   40.834540][  T333]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   40.834676][  T333]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   40.834812][  T333]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   40.834945][  T333]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   40.835075][  T333]  ? copy_msghdr_from_user (net/socket.c:2635)
[   40.835208][  T333]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   40.835367][  T333]  ? move_addr_to_kernel (net/socket.c:258)
[   40.835502][  T333]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   40.835638][  T333]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   40.835769][  T333]  ___sys_sendmsg (net/socket.c:2752)
[   40.835904][  T333]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   40.836066][  T333]  ? copy_msghdr_from_user (net/socket.c:2603)
[   40.836210][  T333]  __sys_sendmsg (net/socket.c:2784)
[   40.836340][  T333]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   40.836472][  T333]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   40.836644][  T333]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   40.836774][  T333]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   40.836920][  T333]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   40.837049][  T333]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   40.837180][  T333]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   40.837310][  T333]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.837474][  T333] RIP: 0033:0x7ffbf010108e
[   40.837617][  T333] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   40.838082][  T333] RSP: 002b:00007ffe9a052b20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   40.838276][  T333] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ffbf010108e
[   40.838471][  T333] RDX: 0000000000000000 RSI: 00007ffe9a052bd0 RDI: 0000000000000005
[   40.838667][  T333] RBP: 00007ffe9a052b30 R08: 0000000000000000 R09: 0000000000000000
[   40.838863][  T333] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d672
[   40.839058][  T333] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe9a0532a0
| [   46.084989][   T68] ------------[ cut here ]------------
| [   46.085156][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   46.085395][   T68] Modules linked in: unix_diag
| [   46.085909][   T68] Tainted: [W]=WARN
[   46.086000][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.086149][   T68] Workqueue: netns cleanup_net
[   46.086322][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   46.086507][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   46.086964][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   46.087115][   T68] RAX: 00000000ffffffa6 RBX: ff11000010e77000 RCX: 1ff4000000092eed
[   46.087289][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010e770bc
[   46.087471][   T68] RBP: ff1100000916c000 R08: 1fe22000021cee19 R09: ff11000008e42ed0
[   46.087652][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   46.087836][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   46.088015][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   46.088221][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.088367][   T68] CR2: 00007fcaddf306c0 CR3: 000000004d34d002 CR4: 0000000000771ef0
[   46.088549][   T68] PKRU: 55555554
[   46.088657][   T68] Call Trace:
[   46.088745][   T68]  <TASK>
[   46.088815][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   46.088977][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   46.089125][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   46.089245][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   46.089366][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   46.089487][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   46.089612][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   46.089731][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   46.089858][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   46.089975][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   46.090099][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   46.090219][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   46.090334][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   46.090458][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   46.090587][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   46.090708][   T68]  process_one_work (kernel/workqueue.c:3314)
[   46.090834][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   46.090954][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   46.091076][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   46.091194][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   46.091310][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   46.091433][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   46.091553][   T68]  kthread (kernel/kthread.c:436)
[   46.091651][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   46.091802][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   46.091920][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   46.092039][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   46.092184][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   46.092301][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   46.092422][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   46.095094][   T68] ------------[ cut here ]------------
| [   46.095298][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   46.095551][   T68] Modules linked in: unix_diag
| [   46.095957][   T68] Tainted: [W]=WARN
[   46.096067][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.096216][   T68] Workqueue: netns cleanup_net
[   46.096338][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   46.096494][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   46.096926][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   46.097076][   T68] RAX: 00000000ffffffa6 RBX: ff11000013ba3c40 RCX: 1ff4000000092eed
[   46.097262][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013ba3cfc
[   46.097439][   T68] RBP: ff1100000a99c000 R08: 1fe22000027747a1 R09: ff11000008e42ed0
[   46.097621][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   46.097795][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   46.097979][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   46.098184][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.098333][   T68] CR2: 00007fcaddf306c0 CR3: 000000004d34d002 CR4: 0000000000771ef0
[   46.098509][   T68] PKRU: 55555554
[   46.098598][   T68] Call Trace:
[   46.098687][   T68]  <TASK>
[   46.098750][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   46.098905][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   46.099067][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   46.099184][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   46.099304][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   46.099430][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   46.099549][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   46.099673][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   46.099796][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   46.099919][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   46.100038][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   46.100156][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   46.100274][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   46.100397][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   46.100518][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   46.100648][   T68]  process_one_work (kernel/workqueue.c:3314)
[   46.100772][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   46.100894][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   46.101017][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   46.101135][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   46.101251][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   46.101370][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   46.101490][   T68]  kthread (kernel/kthread.c:436)
[   46.101580][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   46.101731][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   46.101854][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   46.101972][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   46.102119][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   46.102242][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   46.102361][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   46.104716][   T68] ------------[ cut here ]------------
| [   46.104862][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   46.105122][   T68] Modules linked in: unix_diag
| [   46.105516][   T68] Tainted: [W]=WARN
[   46.105676][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.105835][   T68] Workqueue: netns cleanup_net
[   46.105956][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   46.106111][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   46.106545][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   46.106779][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c4dac80 RCX: 1ff4000000092eed
[   46.106956][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4dad3c
[   46.107177][   T68] RBP: ff11000008c39000 R08: 1fe220000189b5a9 R09: ff11000008e42ed0
[   46.107354][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   46.107536][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   46.107762][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   46.107973][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.108148][   T68] CR2: 00007fcaddf306c0 CR3: 000000004d34d002 CR4: 0000000000771ef0
[   46.108323][   T68] PKRU: 55555554
[   46.108416][   T68] Call Trace:
[   46.108503][   T68]  <TASK>
[   46.108567][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   46.108764][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   46.108917][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   46.109034][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   46.109151][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   46.109269][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   46.109386][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   46.109507][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   46.109671][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   46.109786][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   46.109911][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   46.110031][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   46.110148][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   46.110266][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   46.110383][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   46.110504][   T68]  process_one_work (kernel/workqueue.c:3314)
[   46.110671][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   46.110787][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   46.110915][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   46.111033][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   46.111150][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   46.111267][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   46.111384][   T68]  kthread (kernel/kthread.c:436)
[   46.111475][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   46.111666][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   46.111783][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   46.111941][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   46.112085][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   46.112202][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   46.112318][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   46.115236][   T68] ------------[ cut here ]------------
| [   46.115354][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   46.115777][   T68] Modules linked in: unix_diag
| [   46.116174][   T68] Tainted: [W]=WARN
[   46.116262][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.116416][   T68] Workqueue: netns cleanup_net
[   46.116542][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   46.116741][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   46.117178][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   46.117324][   T68] RAX: 00000000ffffffa6 RBX: ff11000010e763c0 RCX: 1ff4000000092eed
[   46.117503][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010e7647c
[   46.117721][   T68] RBP: ff11000007fa1000 R08: 1fe22000021cec91 R09: ff11000008e42ed0
[   46.117944][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   46.118135][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   46.118314][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   46.118523][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.118717][   T68] CR2: 00007fcaddf306c0 CR3: 000000004d34d002 CR4: 0000000000771ef0
[   46.118898][   T68] PKRU: 55555554
[   46.118985][   T68] Call Trace:
[   46.119072][   T68]  <TASK>
[   46.119133][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   46.119283][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   46.119432][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   46.119551][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   46.119714][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   46.119835][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   46.119953][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   46.120074][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   46.120194][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   46.120310][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   46.120437][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   46.120556][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   46.120720][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   46.120842][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   46.120960][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   46.121080][   T68]  process_one_work (kernel/workqueue.c:3314)
[   46.121204][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   46.121323][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   46.121452][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   46.121570][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   46.121734][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   46.121859][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   46.121975][   T68]  kthread (kernel/kthread.c:436)
[   46.122063][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   46.122208][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   46.122326][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   46.122445][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   46.122636][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   46.122752][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   46.122884][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   46.124901][   T68] ------------[ cut here ]------------
| [   46.125028][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   46.125266][   T68] Modules linked in: unix_diag
| [   46.125666][   T68] Tainted: [W]=WARN
[   46.125754][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.125908][   T68] Workqueue: netns cleanup_net
[   46.126032][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   46.126185][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   46.126615][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   46.126761][   T68] RAX: 00000000ffffffa6 RBX: ff11000013c5b540 RCX: 1ff4000000092eed
[   46.126936][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013c5b5fc
[   46.127111][   T68] RBP: ff11000007869000 R08: 1fe220000278b6c1 R09: ff11000008e42ed0
[   46.127284][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   46.127460][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   46.127640][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   46.127850][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.128000][   T68] CR2: 00007f132ca92574 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   46.128174][   T68] PKRU: 55555554
[   46.128260][   T68] Call Trace:
[   46.128347][   T68]  <TASK>
[   46.128411][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   46.128559][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   46.128705][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   46.128830][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   46.128948][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   46.129063][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   46.129181][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   46.129298][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   46.129420][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   46.129535][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   46.129662][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   46.129781][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   46.129902][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   46.130030][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   46.130148][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   46.130265][   T68]  process_one_work (kernel/workqueue.c:3314)
[   46.130385][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   46.130503][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   46.130629][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   46.130747][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   46.130866][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   46.130984][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   46.131101][   T68]  kthread (kernel/kthread.c:436)
[   46.131189][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   46.131334][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   46.131459][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   46.131577][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   46.131744][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   46.131869][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   46.131987][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   46.145217][   T68] ------------[ cut here ]------------
| [   46.145348][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   46.145599][   T68] Modules linked in: unix_diag
| [   46.146008][   T68] Tainted: [W]=WARN
[   46.146100][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.146253][   T68] Workqueue: netns cleanup_net
[   46.146380][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   46.146543][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   46.146994][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   46.147148][   T68] RAX: 00000000ffffffa6 RBX: ff110000056ff700 RCX: 1ff4000000092eaf
[   46.147332][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000056ff7bc
[   46.147516][   T68] RBP: ff110000086c1000 R08: 1fe2200000adfef9 R09: ff11000008e42ed0
[   46.147710][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   46.147898][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   46.148083][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   46.148300][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.148457][   T68] CR2: 00007f132ca92574 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   46.148646][   T68] PKRU: 55555554
[   46.148739][   T68] Call Trace:
[   46.148837][   T68]  <TASK>
[   46.148902][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   46.149030][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   46.149129][   T68]  netif_close_many (net/core/dev.c:1804)
[   46.149254][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   46.149376][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   46.149510][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   46.149639][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   46.149762][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   46.149922][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   46.150075][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   46.150197][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   46.150321][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   46.150448][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   46.150611][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   46.150738][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   46.150870][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   46.150995][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   46.151119][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   46.151244][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   46.151369][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   46.151494][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   46.151624][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   46.151749][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   46.151877][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   46.152004][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   46.152128][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   46.152250][   T68]  process_one_work (kernel/workqueue.c:3314)
[   46.152376][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   46.152502][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   46.152633][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   46.152757][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   46.152885][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   46.153008][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   46.153132][   T68]  kthread (kernel/kthread.c:436)
[   46.153225][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   46.153377][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   46.153503][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   46.153633][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   46.153787][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   46.153916][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   46.154041][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   46.156716][   T68] ------------[ cut here ]------------
| [   46.156841][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   46.157076][   T68] Modules linked in: unix_diag
| [   46.157469][   T68] Tainted: [W]=WARN
[   46.157558][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.157711][   T68] Workqueue: netns cleanup_net
[   46.157839][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   46.157993][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   46.158422][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   46.158570][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c4dbc40 RCX: 1ff4000000092ed5
[   46.158752][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4dbcfc
[   46.158935][   T68] RBP: ff110000086c1000 R08: 1fe220000189b7a1 R09: ff11000008e42ed0
[   46.159113][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   46.159289][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   46.159469][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   46.159681][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.159835][   T68] CR2: 00007f132ca92574 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   46.160017][   T68] PKRU: 55555554
[   46.160105][   T68] Call Trace:
[   46.160196][   T68]  <TASK>
[   46.160258][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   46.160416][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   46.160570][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   46.160695][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   46.160821][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   46.160942][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   46.161061][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   46.161185][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   46.161308][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   46.161429][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   46.161552][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   46.161677][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   46.161794][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   46.161923][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   46.162041][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   46.162171][   T68]  process_one_work (kernel/workqueue.c:3314)
[   46.162293][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   46.162415][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   46.162542][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   46.162668][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   46.162787][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   46.162914][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   46.163031][   T68]  kthread (kernel/kthread.c:436)
[   46.163121][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   46.163268][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   46.163386][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   46.163506][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   46.163656][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   46.163774][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   46.163908][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   46.211470][  T350] ------------[ cut here ]------------
| [   46.211627][  T350] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/350
| [   46.211869][  T350] Modules linked in: unix_diag
| [   46.212273][  T350] Tainted: [W]=WARN
[   46.212373][  T350] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.212543][  T350] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   46.212721][  T350] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   46.213200][  T350] RSP: 0018:ffa0000000c27a80 EFLAGS: 00010286
[   46.213365][  T350] RAX: 00000000ffffffa6 RBX: ff1100000988ee40 RCX: 1ff4000000184f16
[   46.213565][  T350] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000988eefc
[   46.213766][  T350] RBP: ff1100000a8f4000 R08: 1fe2200001311de1 R09: ff1100000ea95180
[   46.213971][  T350] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   46.214168][  T350] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a8f4000
[   46.214367][  T350] FS:  00007f411b871840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   46.214609][  T350] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.214774][  T350] CR2: 00007f411ba78430 CR3: 000000000fb3b005 CR4: 0000000000771ef0
[   46.214978][  T350] PKRU: 55555554
[   46.215078][  T350] Call Trace:
[   46.215176][  T350]  <TASK>
[   46.215245][  T350]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   46.215378][  T350]  ? notifier_call_chain (kernel/notifier.c:85)
[   46.215516][  T350]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   46.215622][  T350]  register_netdevice (net/core/dev.c:11488)
[   46.215756][  T350]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   46.215928][  T350]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   46.216064][  T350]  register_netdev (net/core/dev.c:11552)
[   46.216196][  T350]  loopback_net_init (drivers/net/loopback.c:218)
[   46.216330][  T350]  ops_init (net/core/net_namespace.c:137)
[   46.216437][  T350]  setup_net (net/core/net_namespace.c:446)
[   46.216537][  T350]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   46.216673][  T350]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   46.216811][  T350]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   46.216944][  T350]  copy_net_ns (net/core/net_namespace.c:579)
[   46.217076][  T350]  create_new_namespaces (kernel/nsproxy.c:132)
[   46.217209][  T350]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   46.217344][  T350]  ksys_unshare (kernel/fork.c:3243)
[   46.217479][  T350]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   46.217619][  T350]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   46.217752][  T350]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   46.217894][  T350]  ? __ia32_sys_open (fs/open.c:1374)
[   46.218027][  T350]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   46.218159][  T350]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   46.218291][  T350]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   46.218425][  T350]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   46.218556][  T350]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   46.218693][  T350]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   46.218864][  T350] RIP: 0033:0x7f411bb33bcb
[   46.219004][  T350] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   46.219479][  T350] RSP: 002b:00007fff9277d408 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   46.219683][  T350] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f411bb33bcb
[   46.219888][  T350] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   46.220086][  T350] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   46.220285][  T350] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff9277f630
[   46.220484][  T350] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff92781886
| [   46.229739][  T350] ------------[ cut here ]------------
| [   46.229884][  T350] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/350
| [   46.230110][  T350] Modules linked in: unix_diag
| [   46.230509][  T350] Tainted: [W]=WARN
[   46.230617][  T350] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.230785][  T350] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   46.230960][  T350] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   46.231426][  T350] RSP: 0018:ffa0000000c27918 EFLAGS: 00010286
[   46.231595][  T350] RAX: 00000000ffffffa6 RBX: ff11000010f8aac0 RCX: 1ff4000000184ee9
[   46.231788][  T350] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010f8ab7c
[   46.231988][  T350] RBP: ff11000005b44000 R08: 1fe22000021f1571 R09: ff1100000ea95180
[   46.232182][  T350] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   46.232378][  T350] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005b44000
[   46.232578][  T350] FS:  00007f411b871840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   46.232815][  T350] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.232979][  T350] CR2: 00007f411ba78430 CR3: 000000000fb3b005 CR4: 0000000000771ef0
[   46.233178][  T350] PKRU: 55555554
[   46.233275][  T350] Call Trace:
[   46.233373][  T350]  <TASK>
[   46.233445][  T350]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   46.233576][  T350]  ? notifier_call_chain (kernel/notifier.c:85)
[   46.233711][  T350]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   46.233814][  T350]  register_netdevice (net/core/dev.c:11488)
[   46.233947][  T350]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   46.234110][  T350]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   46.234242][  T350]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   46.234372][  T350]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   46.234506][  T350]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   46.234644][  T350]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   46.234774][  T350]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   46.234910][  T350]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   46.235042][  T350]  ops_init (net/core/net_namespace.c:137)
[   46.235144][  T350]  setup_net (net/core/net_namespace.c:446)
[   46.235243][  T350]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   46.235371][  T350]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   46.235506][  T350]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   46.235671][  T350]  copy_net_ns (net/core/net_namespace.c:579)
[   46.235811][  T350]  create_new_namespaces (kernel/nsproxy.c:132)
[   46.235945][  T350]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   46.236078][  T350]  ksys_unshare (kernel/fork.c:3243)
[   46.236208][  T350]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   46.236338][  T350]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   46.236471][  T350]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   46.236607][  T350]  ? __ia32_sys_open (fs/open.c:1374)
[   46.236739][  T350]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   46.236874][  T350]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   46.237006][  T350]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   46.237138][  T350]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   46.237268][  T350]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   46.237397][  T350]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   46.237562][  T350] RIP: 0033:0x7f411bb33bcb
[   46.237705][  T350] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   46.238171][  T350] RSP: 002b:00007fff9277d408 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   46.238365][  T350] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f411bb33bcb
[   46.238562][  T350] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   46.238764][  T350] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   46.238964][  T350] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff9277f630
[   46.239158][  T350] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff92781886
| [   46.243000][  T350] ------------[ cut here ]------------
| [   46.243137][  T350] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/350
| [   46.243368][  T350] Modules linked in: unix_diag
| [   46.243832][  T350] Tainted: [W]=WARN
[   46.243934][  T350] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.244101][  T350] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   46.244272][  T350] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   46.244750][  T350] RSP: 0018:ffa0000000c278f8 EFLAGS: 00010286
[   46.244922][  T350] RAX: 00000000ffffffa6 RBX: ff1100000bc57000 RCX: 1ff4000000184ee5
[   46.245118][  T350] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc570bc
[   46.245315][  T350] RBP: ff11000008da4000 R08: 1fe220000178ae19 R09: ff1100000ea95180
[   46.245516][  T350] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   46.245720][  T350] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008da4000
[   46.245924][  T350] FS:  00007f411b871840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   46.246156][  T350] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.246322][  T350] CR2: 00007f411ba78430 CR3: 000000000fb3b005 CR4: 0000000000771ef0
[   46.246523][  T350] PKRU: 55555554
[   46.246627][  T350] Call Trace:
[   46.246725][  T350]  <TASK>
[   46.246794][  T350]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   46.246932][  T350]  ? notifier_call_chain (kernel/notifier.c:85)
[   46.247067][  T350]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   46.247167][  T350]  register_netdevice (net/core/dev.c:11488)
[   46.247302][  T350]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   46.247471][  T350]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   46.247611][  T350]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   46.247743][  T350]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   46.247879][  T350]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   46.248015][  T350]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   46.248147][  T350]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   46.248280][  T350]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   46.248418][  T350]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   46.248553][  T350]  vti_init_net (net/ipv4/ip_vti.c:517)
[   46.248690][  T350]  ops_init (net/core/net_namespace.c:137)
[   46.248791][  T350]  setup_net (net/core/net_namespace.c:446)
[   46.248898][  T350]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   46.249031][  T350]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   46.249161][  T350]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   46.249296][  T350]  copy_net_ns (net/core/net_namespace.c:579)
[   46.249431][  T350]  create_new_namespaces (kernel/nsproxy.c:132)
[   46.249566][  T350]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   46.249705][  T350]  ksys_unshare (kernel/fork.c:3243)
[   46.249841][  T350]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   46.249975][  T350]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   46.250106][  T350]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   46.250241][  T350]  ? __ia32_sys_open (fs/open.c:1374)
[   46.250375][  T350]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   46.250511][  T350]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   46.250647][  T350]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   46.250778][  T350]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   46.250916][  T350]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   46.251048][  T350]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   46.251210][  T350] RIP: 0033:0x7f411bb33bcb
[   46.251348][  T350] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   46.251829][  T350] RSP: 002b:00007fff9277d408 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   46.252028][  T350] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f411bb33bcb
[   46.252226][  T350] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   46.252423][  T350] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   46.252625][  T350] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff9277f630
[   46.252827][  T350] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff92781886
| [   46.257080][  T350] ------------[ cut here ]------------
| [   46.257218][  T350] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/350
| [   46.257450][  T350] Modules linked in: unix_diag
| [   46.257857][  T350] Tainted: [W]=WARN
[   46.257956][  T350] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.258119][  T350] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   46.258288][  T350] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   46.258762][  T350] RSP: 0018:ffa0000000c27a78 EFLAGS: 00010286
[   46.258932][  T350] RAX: 00000000ffffffa6 RBX: ff1100000fb30900 RCX: 1ff4000000184f15
[   46.259130][  T350] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fb309bc
[   46.259327][  T350] RBP: ff11000008b39000 R08: 1fe2200001f66139 R09: ff1100000ea95180
[   46.259526][  T350] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   46.259725][  T350] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b39000
[   46.259928][  T350] FS:  00007f411b871840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   46.260162][  T350] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.260327][  T350] CR2: 00007f411ba78430 CR3: 000000000fb3b005 CR4: 0000000000771ef0
[   46.260529][  T350] PKRU: 55555554
[   46.260630][  T350] Call Trace:
[   46.260729][  T350]  <TASK>
[   46.260797][  T350]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   46.260936][  T350]  ? notifier_call_chain (kernel/notifier.c:85)
[   46.261069][  T350]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   46.261169][  T350]  register_netdevice (net/core/dev.c:11488)
[   46.261301][  T350]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   46.261467][  T350]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   46.261606][  T350]  register_netdev (net/core/dev.c:11552)
[   46.261738][  T350]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   46.261877][  T350]  ops_init (net/core/net_namespace.c:137)
[   46.261980][  T350]  setup_net (net/core/net_namespace.c:446)
[   46.262080][  T350]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   46.262210][  T350]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   46.262342][  T350]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   46.262478][  T350]  copy_net_ns (net/core/net_namespace.c:579)
[   46.262618][  T350]  create_new_namespaces (kernel/nsproxy.c:132)
[   46.262752][  T350]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   46.262892][  T350]  ksys_unshare (kernel/fork.c:3243)
[   46.263023][  T350]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   46.263155][  T350]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   46.263285][  T350]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   46.263421][  T350]  ? __ia32_sys_open (fs/open.c:1374)
[   46.263554][  T350]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   46.263690][  T350]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   46.263827][  T350]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   46.263958][  T350]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   46.264089][  T350]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   46.264219][  T350]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   46.264383][  T350] RIP: 0033:0x7f411bb33bcb
[   46.264522][  T350] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   46.265006][  T350] RSP: 002b:00007fff9277d408 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   46.265205][  T350] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f411bb33bcb
[   46.265400][  T350] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   46.265602][  T350] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   46.265804][  T350] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff9277f630
[   46.266002][  T350] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff92781886
| [   46.270350][  T350] ------------[ cut here ]------------
| [   46.270488][  T350] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/350
| [   46.271306][  T350] Modules linked in: unix_diag
| [   46.271770][  T350] Tainted: [W]=WARN
[   46.271878][  T350] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.272042][  T350] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   46.272212][  T350] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   46.272745][  T350] RSP: 0018:ffa0000000c27a68 EFLAGS: 00010286
[   46.272970][  T350] RAX: 00000000ffffffa6 RBX: ff11000013d1c740 RCX: 1ff4000000184f13
[   46.273170][  T350] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013d1c7fc
[   46.273365][  T350] RBP: ff11000008b51000 R08: 1fe22000027a3901 R09: ff1100000ea95180
[   46.273564][  T350] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   46.273822][  T350] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b51000
[   46.274021][  T350] FS:  00007f411b871840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   46.274252][  T350] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.274419][  T350] CR2: 00007f411ba78430 CR3: 000000000fb3b005 CR4: 0000000000771ef0
[   46.274674][  T350] PKRU: 55555554
[   46.274773][  T350] Call Trace:
[   46.274877][  T350]  <TASK>
[   46.274945][  T350]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   46.275077][  T350]  ? notifier_call_chain (kernel/notifier.c:85)
[   46.275208][  T350]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   46.275309][  T350]  register_netdevice (net/core/dev.c:11488)
[   46.275446][  T350]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   46.275672][  T350]  register_netdev (net/core/dev.c:11552)
[   46.275807][  T350]  sit_init_net (net/ipv6/sit.c:1860)
[   46.275940][  T350]  ops_init (net/core/net_namespace.c:137)
[   46.276041][  T350]  setup_net (net/core/net_namespace.c:446)
[   46.276141][  T350]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   46.276271][  T350]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   46.276402][  T350]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   46.276540][  T350]  copy_net_ns (net/core/net_namespace.c:579)
[   46.276729][  T350]  create_new_namespaces (kernel/nsproxy.c:132)
[   46.276870][  T350]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   46.277005][  T350]  ksys_unshare (kernel/fork.c:3243)
[   46.277135][  T350]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   46.277266][  T350]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   46.277399][  T350]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   46.277537][  T350]  ? __ia32_sys_open (fs/open.c:1374)
[   46.277726][  T350]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   46.277863][  T350]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   46.277994][  T350]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   46.278126][  T350]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   46.278344][  T350]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   46.278481][  T350]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   46.278700][  T350] RIP: 0033:0x7f411bb33bcb
[   46.278845][  T350] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   46.279402][  T350] RSP: 002b:00007fff9277d408 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   46.279662][  T350] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f411bb33bcb
[   46.279865][  T350] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   46.280062][  T350] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   46.280345][  T350] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff9277f630
[   46.280546][  T350] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff92781886
| [   46.285176][  T350] ------------[ cut here ]------------
| [   46.285321][  T350] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/350
| [   46.285553][  T350] Modules linked in: unix_diag
| [   46.285974][  T350] Tainted: [W]=WARN
[   46.286073][  T350] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.286238][  T350] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   46.286410][  T350] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   46.286889][  T350] RSP: 0018:ffa0000000c27a78 EFLAGS: 00010286
[   46.287053][  T350] RAX: 00000000ffffffa6 RBX: ff11000010e9be00 RCX: 1ff4000000184f15
[   46.287250][  T350] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010e9bebc
[   46.287450][  T350] RBP: ff11000007f34000 R08: 1fe22000021d37d9 R09: ff1100000ea95180
[   46.287656][  T350] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   46.287855][  T350] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007f34000
[   46.288053][  T350] FS:  00007f411b871840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   46.288286][  T350] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.288453][  T350] CR2: 00007fcaddf306c0 CR3: 000000000fb3b001 CR4: 0000000000771ef0
[   46.288657][  T350] PKRU: 55555554
[   46.288756][  T350] Call Trace:
[   46.288864][  T350]  <TASK>
[   46.288932][  T350]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   46.289066][  T350]  ? notifier_call_chain (kernel/notifier.c:85)
[   46.289198][  T350]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   46.289298][  T350]  register_netdevice (net/core/dev.c:11488)
[   46.289435][  T350]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   46.289602][  T350]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   46.289735][  T350]  register_netdev (net/core/dev.c:11552)
[   46.289873][  T350]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   46.290007][  T350]  ops_init (net/core/net_namespace.c:137)
[   46.290107][  T350]  setup_net (net/core/net_namespace.c:446)
[   46.290209][  T350]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   46.290338][  T350]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   46.290471][  T350]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   46.290610][  T350]  copy_net_ns (net/core/net_namespace.c:579)
[   46.290742][  T350]  create_new_namespaces (kernel/nsproxy.c:132)
[   46.290881][  T350]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   46.291014][  T350]  ksys_unshare (kernel/fork.c:3243)
[   46.291145][  T350]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   46.291274][  T350]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   46.291406][  T350]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   46.291540][  T350]  ? __ia32_sys_open (fs/open.c:1374)
[   46.291679][  T350]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   46.291812][  T350]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   46.291943][  T350]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   46.292075][  T350]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   46.292206][  T350]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   46.292337][  T350]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   46.292502][  T350] RIP: 0033:0x7f411bb33bcb
[   46.292645][  T350] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   46.293113][  T350] RSP: 002b:00007fff9277d408 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   46.293310][  T350] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f411bb33bcb
[   46.293508][  T350] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   46.293707][  T350] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   46.293907][  T350] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff9277f630
[   46.294101][  T350] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff92781886
| [   46.323367][  T351] ------------[ cut here ]------------
| [   46.323551][  T351] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/351
| [   46.323849][  T351] Modules linked in: unix_diag
| [   46.324341][  T351] Tainted: [W]=WARN
[   46.324492][  T351] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.324723][  T351] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   46.324948][  T351] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   46.325460][  T351] RSP: 0018:ffa0000000c67020 EFLAGS: 00010286
[   46.325685][  T351] RAX: 00000000ffffffa6 RBX: ff1100000a2ef540 RCX: 1ff400000018cdca
[   46.325935][  T351] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2ef5fc
[   46.326175][  T351] RBP: ff1100000a8f4000 R08: 1fe220000145dec1 R09: ff1100000ea10b58
[   46.326417][  T351] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   46.326672][  T351] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   46.326934][  T351] FS:  00007f96c3265840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   46.327208][  T351] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.327420][  T351] CR2: 000000000f775988 CR3: 00000000142f6004 CR4: 0000000000771ef0
[   46.327679][  T351] PKRU: 55555554
[   46.327830][  T351] Call Trace:
[   46.327976][  T351]  <TASK>
[   46.328091][  T351]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   46.328273][  T351]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   46.328424][  T351]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   46.328617][  T351]  __dev_notify_flags (net/core/dev.c:9787)
[   46.328806][  T351]  ? netif_change_name (net/core/dev.c:1495)
[   46.328984][  T351]  ? __dev_change_flags (net/core/dev.c:9752)
[   46.329163][  T351]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   46.329339][  T351]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   46.329527][  T351]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   46.329720][  T351]  netif_change_flags (net/core/dev.c:9820)
[   46.329909][  T351]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   46.330088][  T351]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   46.330270][  T351]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   46.330455][  T351]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   46.330680][  T351]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   46.330866][  T351]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   46.331045][  T351]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   46.331223][  T351]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   46.331402][  T351]  ? __kernel_text_address (kernel/extable.c:79)
[   46.331599][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.331777][  T351]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   46.331966][  T351]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   46.332144][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   46.332322][  T351]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   46.332505][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   46.332783][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   46.333035][  T351]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   46.333272][  T351]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   46.333531][  T351]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   46.333808][  T351]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   46.334073][  T351]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   46.334312][  T351]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   46.334524][  T351]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   46.334716][  T351]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   46.334915][  T351]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   46.335099][  T351]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   46.335278][  T351]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   46.335464][  T351]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   46.335659][  T351]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   46.335844][  T351]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   46.336023][  T351]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   46.336202][  T351]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   46.336381][  T351]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   46.336564][  T351]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   46.336760][  T351]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   46.336945][  T351]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   46.337123][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.337301][  T351]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   46.337486][  T351]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   46.337680][  T351]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   46.337866][  T351]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   46.338044][  T351]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   46.338227][  T351]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   46.338403][  T351]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   46.338603][  T351]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   46.338783][  T351]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   46.338969][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.339147][  T351]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   46.339327][  T351]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   46.339514][  T351]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   46.339713][  T351]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   46.339903][  T351]  ? copy_msghdr_from_user (net/socket.c:2635)
[   46.340083][  T351]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   46.340292][  T351]  ? move_addr_to_kernel (net/socket.c:258)
[   46.340480][  T351]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   46.340669][  T351]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   46.340860][  T351]  ___sys_sendmsg (net/socket.c:2752)
[   46.341042][  T351]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   46.341252][  T351]  ? copy_msghdr_from_user (net/socket.c:2603)
[   46.341444][  T351]  __sys_sendmsg (net/socket.c:2784)
[   46.341636][  T351]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   46.341819][  T351]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   46.342036][  T351]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   46.342215][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   46.342395][  T351]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   46.342594][  T351]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   46.342771][  T351]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   46.342958][  T351]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   46.343166][  T351] RIP: 0033:0x7f96c349f08e
[   46.343349][  T351] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   46.343885][  T351] RSP: 002b:00007ffe56f31410 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   46.344130][  T351] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f96c349f08e
[   46.344371][  T351] RDX: 0000000000000000 RSI: 00007ffe56f314c0 RDI: 0000000000000005
[   46.344632][  T351] RBP: 00007ffe56f31420 R08: 0000000000000000 R09: 0000000000000000
[   46.344879][  T351] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d677
[   46.345119][  T351] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe56f31b90
| [   51.579898][   T68] ------------[ cut here ]------------
| [   51.580069][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   51.580310][   T68] Modules linked in: unix_diag
| [   51.581219][   T68] Tainted: [W]=WARN
[   51.581313][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.581468][   T68] Workqueue: netns cleanup_net
[   51.581606][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.581766][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.582198][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   51.582348][   T68] RAX: 00000000ffffffa6 RBX: ff11000013bada80 RCX: 1ff4000000092eed
[   51.582528][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013badb3c
[   51.582712][   T68] RBP: ff11000007f34000 R08: 1fe2200002775b69 R09: ff11000008e42ed0
[   51.582894][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   51.583072][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.583269][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   51.583482][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.583638][   T68] CR2: 00007f6bf9c9ac20 CR3: 000000004d34d006 CR4: 0000000000771ef0
[   51.583823][   T68] PKRU: 55555554
[   51.583915][   T68] Call Trace:
[   51.584004][   T68]  <TASK>
[   51.584068][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.584223][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.584372][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.584496][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.584623][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.584743][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.584867][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.584988][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.585107][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   51.585225][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.585346][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   51.585468][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.585592][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.585715][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.585837][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.585960][   T68]  process_one_work (kernel/workqueue.c:3314)
[   51.586081][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.586201][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.586333][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.586455][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.586577][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   51.586703][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.586823][   T68]  kthread (kernel/kthread.c:436)
[   51.586913][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.587060][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.587178][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.587299][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.587453][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.587570][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.587695][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.589903][   T68] ------------[ cut here ]------------
| [   51.590025][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   51.590259][   T68] Modules linked in: unix_diag
| [   51.591154][   T68] Tainted: [W]=WARN
[   51.591248][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.591397][   T68] Workqueue: netns cleanup_net
[   51.591523][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.591683][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.592109][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   51.592257][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c5e98c0 RCX: 1ff4000000092eed
[   51.592439][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c5e997c
[   51.592622][   T68] RBP: ff11000008b51000 R08: 1fe22000018bd331 R09: ff11000008e42ed0
[   51.592798][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   51.592977][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.593160][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   51.593366][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.593517][   T68] CR2: 00007f6bf9c9ac20 CR3: 000000004d34d006 CR4: 0000000000771ef0
[   51.593776][   T68] PKRU: 55555554
[   51.593870][   T68] Call Trace:
[   51.593959][   T68]  <TASK>
[   51.594021][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.594173][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.594392][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.594514][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.594711][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.594860][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.594991][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.595111][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.595234][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   51.595352][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.595477][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   51.595599][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.595717][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.595844][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.595968][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.596088][   T68]  process_one_work (kernel/workqueue.c:3314)
[   51.596211][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.596328][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.596454][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.596574][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.596695][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   51.596818][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.596937][   T68]  kthread (kernel/kthread.c:436)
[   51.597031][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.597178][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.597297][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.597419][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.597566][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.597689][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.597816][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.600043][   T68] ------------[ cut here ]------------
| [   51.600160][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   51.600390][   T68] Modules linked in: unix_diag
| [   51.600857][   T68] Tainted: [W]=WARN
[   51.600948][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.601167][   T68] Workqueue: netns cleanup_net
[   51.601290][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.601446][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.601980][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   51.602202][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b969700 RCX: 1ff4000000092eed
[   51.602375][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b9697bc
[   51.602632][   T68] RBP: ff11000008b39000 R08: 1fe220000172d2f9 R09: ff11000008e42ed0
[   51.602807][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   51.602991][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.603169][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   51.603379][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.603531][   T68] CR2: 00007f6bf9c9ac20 CR3: 000000004d34d006 CR4: 0000000000771ef0
[   51.603783][   T68] PKRU: 55555554
[   51.603882][   T68] Call Trace:
[   51.603977][   T68]  <TASK>
[   51.604037][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.604191][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.604423][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.604540][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.604665][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.604781][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.604907][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.605028][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.605147][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   51.605269][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.605390][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   51.605512][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.605635][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.605829][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.605947][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.606065][   T68]  process_one_work (kernel/workqueue.c:3314)
[   51.606188][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.606307][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.606433][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.606554][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.606747][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   51.606874][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.606997][   T68]  kthread (kernel/kthread.c:436)
[   51.607090][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.607239][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.607356][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.607548][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.607774][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.607900][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.608019][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.610387][   T68] ------------[ cut here ]------------
| [   51.610511][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   51.610744][   T68] Modules linked in: unix_diag
| [   51.611210][   T68] Tainted: [W]=WARN
[   51.611300][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.611454][   T68] Workqueue: netns cleanup_net
[   51.611576][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.611734][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.612308][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   51.612539][   T68] RAX: 00000000ffffffa6 RBX: ff11000010e77e00 RCX: 1ff4000000092eed
[   51.612720][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010e77ebc
[   51.612900][   T68] RBP: ff11000008da4000 R08: 1fe22000021cefd9 R09: ff11000008e42ed0
[   51.613149][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   51.613329][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.613511][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   51.613795][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.613953][   T68] CR2: 00007f6bf9c9ac20 CR3: 000000004d34d006 CR4: 0000000000771ef0
[   51.614207][   T68] PKRU: 55555554
[   51.614297][   T68] Call Trace:
[   51.614384][   T68]  <TASK>
[   51.614448][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.614605][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.614751][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.614874][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.614998][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.615117][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.615237][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.615357][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.615478][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   51.615598][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.615720][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   51.615842][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.615959][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.616080][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.616267][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.616386][   T68]  process_one_work (kernel/workqueue.c:3314)
[   51.616508][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.616627][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.616826][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.616947][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.617066][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   51.617189][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.617375][   T68]  kthread (kernel/kthread.c:436)
[   51.617468][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.617621][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.617740][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.617935][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.618087][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.618206][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.618325][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.620279][   T68] ------------[ cut here ]------------
| [   51.620394][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   51.620699][   T68] Modules linked in: unix_diag
| [   51.621096][   T68] Tainted: [W]=WARN
[   51.621183][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.621401][   T68] Workqueue: netns cleanup_net
[   51.621527][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.621684][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.622180][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   51.622474][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b175380 RCX: 1ff4000000092eed
[   51.622653][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b17543c
[   51.622832][   T68] RBP: ff11000005b44000 R08: 1fe220000162ea89 R09: ff11000008e42ed0
[   51.623149][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   51.623325][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.623505][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   51.623865][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.624011][   T68] CR2: 00007f6bf9c9ac20 CR3: 000000004d34d006 CR4: 0000000000771ef0
[   51.624331][   T68] PKRU: 55555554
[   51.624420][   T68] Call Trace:
[   51.624509][   T68]  <TASK>
[   51.624570][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.624725][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.624972][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   51.625089][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   51.625280][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.625395][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   51.625592][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.625713][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   51.625839][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   51.625960][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.626222][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   51.626340][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.626460][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.626578][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.626702][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.626826][   T68]  process_one_work (kernel/workqueue.c:3314)
[   51.626948][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.627066][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.627263][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.627381][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.627500][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   51.627623][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.627738][   T68]  kthread (kernel/kthread.c:436)
[   51.627832][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.627976][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.628094][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.628211][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.628357][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.628477][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.628600][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.644150][   T68] ------------[ cut here ]------------
| [   51.644283][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   51.644534][   T68] Modules linked in: unix_diag
| [   51.644957][   T68] Tainted: [W]=WARN
[   51.645051][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.645207][   T68] Workqueue: netns cleanup_net
[   51.645336][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.645502][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.645954][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   51.646109][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b174580 RCX: 1ff4000000092eaf
[   51.646294][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b17463c
[   51.646483][   T68] RBP: ff1100000a8f4000 R08: 1fe220000162e8c9 R09: ff11000008e42ed0
[   51.646676][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   51.646866][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   51.647057][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   51.647273][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.647431][   T68] CR2: 00007f6bf9c9ac20 CR3: 000000004d34d006 CR4: 0000000000771ef0
[   51.647623][   T68] PKRU: 55555554
[   51.647716][   T68] Call Trace:
[   51.647808][   T68]  <TASK>
[   51.647879][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.648005][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.648099][   T68]  netif_close_many (net/core/dev.c:1804)
[   51.648222][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.648346][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.648478][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.648609][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   51.648732][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   51.648894][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   51.649047][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   51.649175][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.649297][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   51.649421][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.649577][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.649710][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   51.649840][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   51.649964][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.650088][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   51.650213][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   51.650338][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   51.650468][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.650598][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   51.650724][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.650852][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.650978][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.651101][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.651226][   T68]  process_one_work (kernel/workqueue.c:3314)
[   51.651355][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.651481][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.651616][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.651743][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.651875][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   51.652003][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.652125][   T68]  kthread (kernel/kthread.c:436)
[   51.652219][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.652372][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.652499][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.652627][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.652781][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.652911][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.653037][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.655265][   T68] ------------[ cut here ]------------
| [   51.655390][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   51.656050][   T68] Modules linked in: unix_diag
| [   51.656470][   T68] Tainted: [W]=WARN
[   51.656560][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.656754][   T68] Workqueue: netns cleanup_net
[   51.656883][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.657087][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.657516][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   51.657715][   T68] RAX: 00000000ffffffa6 RBX: ff11000005620ac0 RCX: 1ff4000000092ed5
[   51.657905][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005620b7c
[   51.658086][   T68] RBP: ff1100000a8f4000 R08: 1fe2200000ac4171 R09: ff11000008e42ed0
[   51.658268][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   51.658447][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   51.658675][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   51.658890][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.659038][   T68] CR2: 00007f6bf9c9ac20 CR3: 000000004d34d006 CR4: 0000000000771ef0
[   51.659269][   T68] PKRU: 55555554
[   51.659357][   T68] Call Trace:
[   51.659447][   T68]  <TASK>
[   51.659509][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   51.659708][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   51.659863][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.659984][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   51.660104][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   51.660223][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   51.660340][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   51.660463][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   51.660638][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   51.660755][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.660883][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   51.661007][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   51.661124][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   51.661244][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.661366][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.661489][   T68]  process_one_work (kernel/workqueue.c:3314)
[   51.661664][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   51.661783][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.661911][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   51.662031][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.662149][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   51.662269][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   51.662392][   T68]  kthread (kernel/kthread.c:436)
[   51.662488][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   51.662683][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.662802][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   51.662927][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   51.663074][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   51.663191][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   51.663310][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   51.683903][  T367] ------------[ cut here ]------------
| [   51.684053][  T367] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/367
| [   51.684290][  T367] Modules linked in: unix_diag
| [   51.684705][  T367] Tainted: [W]=WARN
[   51.684806][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.684975][  T367] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.685146][  T367] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.685621][  T367] RSP: 0018:ffa0000000cd7a80 EFLAGS: 00010286
[   51.685787][  T367] RAX: 00000000ffffffa6 RBX: ff1100000bebfe00 RCX: 1ff400000019af16
[   51.685987][  T367] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bebfebc
[   51.686184][  T367] RBP: ff11000008c39000 R08: 1fe22000017d7fd9 R09: ff11000005b2ae80
[   51.686378][  T367] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   51.686577][  T367] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c39000
[   51.686779][  T367] FS:  00007f3ac6d4f840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   51.687015][  T367] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.687181][  T367] CR2: 00007f3ac6f56430 CR3: 000000000c383002 CR4: 0000000000771ef0
[   51.687378][  T367] PKRU: 55555554
[   51.687478][  T367] Call Trace:
[   51.687575][  T367]  <TASK>
[   51.687651][  T367]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.687783][  T367]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.687924][  T367]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.688024][  T367]  register_netdevice (net/core/dev.c:11488)
[   51.688155][  T367]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.688318][  T367]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   51.688452][  T367]  register_netdev (net/core/dev.c:11552)
[   51.688586][  T367]  loopback_net_init (drivers/net/loopback.c:218)
[   51.688719][  T367]  ops_init (net/core/net_namespace.c:137)
[   51.688826][  T367]  setup_net (net/core/net_namespace.c:446)
[   51.688927][  T367]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.689057][  T367]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.689188][  T367]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.689320][  T367]  copy_net_ns (net/core/net_namespace.c:579)
[   51.689454][  T367]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.689592][  T367]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.689725][  T367]  ksys_unshare (kernel/fork.c:3243)
[   51.689860][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.689993][  T367]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.690122][  T367]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.690254][  T367]  ? __ia32_sys_open (fs/open.c:1374)
[   51.690387][  T367]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.690518][  T367]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.690654][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.690786][  T367]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.690922][  T367]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.691052][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.691216][  T367] RIP: 0033:0x7f3ac7011bcb
[   51.691355][  T367] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.691832][  T367] RSP: 002b:00007ffe71ad5828 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.692034][  T367] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3ac7011bcb
[   51.692230][  T367] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.692426][  T367] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.692627][  T367] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe71ad7a50
[   51.692826][  T367] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe71ad8886
| [   51.696634][  T367] ------------[ cut here ]------------
| [   51.696764][  T367] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/367
| [   51.697000][  T367] Modules linked in: unix_diag
| [   51.697393][  T367] Tainted: [W]=WARN
[   51.697496][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.697663][  T367] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.697839][  T367] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.698304][  T367] RSP: 0018:ffa0000000cd7918 EFLAGS: 00010286
[   51.698471][  T367] RAX: 00000000ffffffa6 RBX: ff11000005006ac0 RCX: 1ff400000019aee9
[   51.698670][  T367] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000005006b7c
[   51.698869][  T367] RBP: ff11000007fa9000 R08: 1fe2200000a00d71 R09: ff11000005b2ae80
[   51.699065][  T367] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   51.699261][  T367] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007fa9000
[   51.699459][  T367] FS:  00007f3ac6d4f840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   51.699692][  T367] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.699859][  T367] CR2: 00007f3ac6f56430 CR3: 000000000c383002 CR4: 0000000000771ef0
[   51.700058][  T367] PKRU: 55555554
[   51.700155][  T367] Call Trace:
[   51.700252][  T367]  <TASK>
[   51.700320][  T367]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.700453][  T367]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.700589][  T367]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.700689][  T367]  register_netdevice (net/core/dev.c:11488)
[   51.700826][  T367]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.700991][  T367]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   51.701122][  T367]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   51.701253][  T367]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   51.701384][  T367]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   51.701519][  T367]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   51.701658][  T367]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   51.701791][  T367]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   51.701927][  T367]  ops_init (net/core/net_namespace.c:137)
[   51.702029][  T367]  setup_net (net/core/net_namespace.c:446)
[   51.702129][  T367]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.702259][  T367]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.702389][  T367]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.702524][  T367]  copy_net_ns (net/core/net_namespace.c:579)
[   51.702660][  T367]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.702792][  T367]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.702932][  T367]  ksys_unshare (kernel/fork.c:3243)
[   51.703065][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.703195][  T367]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.703324][  T367]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.703456][  T367]  ? __ia32_sys_open (fs/open.c:1374)
[   51.703595][  T367]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.703725][  T367]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.703859][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.703989][  T367]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.704119][  T367]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.704249][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.704411][  T367] RIP: 0033:0x7f3ac7011bcb
[   51.704549][  T367] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.705022][  T367] RSP: 002b:00007ffe71ad5828 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.705217][  T367] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3ac7011bcb
[   51.705414][  T367] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.705613][  T367] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.705808][  T367] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe71ad7a50
[   51.706005][  T367] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe71ad8886
| [   51.709816][  T367] ------------[ cut here ]------------
| [   51.709951][  T367] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/367
| [   51.710177][  T367] Modules linked in: unix_diag
| [   51.710579][  T367] Tainted: [W]=WARN
[   51.710686][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.710856][  T367] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.711025][  T367] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.711498][  T367] RSP: 0018:ffa0000000cd78f8 EFLAGS: 00010286
[   51.711668][  T367] RAX: 00000000ffffffa6 RBX: ff11000013d6fe00 RCX: 1ff400000019aee5
[   51.711872][  T367] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013d6febc
[   51.712071][  T367] RBP: ff11000009e14000 R08: 1fe22000027adfd9 R09: ff11000005b2ae80
[   51.712266][  T367] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   51.712468][  T367] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009e14000
[   51.712672][  T367] FS:  00007f3ac6d4f840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   51.712909][  T367] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.713074][  T367] CR2: 00007f3ac6f56430 CR3: 000000000c383002 CR4: 0000000000771ef0
[   51.713274][  T367] PKRU: 55555554
[   51.713373][  T367] Call Trace:
[   51.713476][  T367]  <TASK>
[   51.713544][  T367]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.713682][  T367]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.713820][  T367]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.713921][  T367]  register_netdevice (net/core/dev.c:11488)
[   51.714054][  T367]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.714220][  T367]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   51.714354][  T367]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   51.714488][  T367]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   51.714625][  T367]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   51.714760][  T367]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   51.714895][  T367]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   51.715028][  T367]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   51.715161][  T367]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   51.715297][  T367]  vti_init_net (net/ipv4/ip_vti.c:517)
[   51.715433][  T367]  ops_init (net/core/net_namespace.c:137)
[   51.715535][  T367]  setup_net (net/core/net_namespace.c:446)
[   51.715640][  T367]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.715772][  T367]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.715911][  T367]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.716044][  T367]  copy_net_ns (net/core/net_namespace.c:579)
[   51.716178][  T367]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.716312][  T367]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.716450][  T367]  ksys_unshare (kernel/fork.c:3243)
[   51.716586][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.716718][  T367]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.716855][  T367]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.716987][  T367]  ? __ia32_sys_open (fs/open.c:1374)
[   51.717121][  T367]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.717253][  T367]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.717385][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.717518][  T367]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.717654][  T367]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.717785][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.717953][  T367] RIP: 0033:0x7f3ac7011bcb
[   51.718089][  T367] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.718559][  T367] RSP: 002b:00007ffe71ad5828 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.718759][  T367] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3ac7011bcb
[   51.718957][  T367] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.719153][  T367] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.719349][  T367] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe71ad7a50
[   51.719547][  T367] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe71ad8886
| [   51.727852][  T367] ------------[ cut here ]------------
| [   51.727991][  T367] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/367
| [   51.728217][  T367] Modules linked in: unix_diag
| [   51.728623][  T367] Tainted: [W]=WARN
[   51.728722][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.728892][  T367] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.729062][  T367] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.729530][  T367] RSP: 0018:ffa0000000cd7a78 EFLAGS: 00010286
[   51.729699][  T367] RAX: 00000000ffffffa6 RBX: ff11000009832e40 RCX: 1ff400000019af15
[   51.729902][  T367] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009832efc
[   51.730103][  T367] RBP: ff11000005239000 R08: 1fe22000013065e1 R09: ff11000005b2ae80
[   51.730298][  T367] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   51.730496][  T367] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005239000
[   51.730701][  T367] FS:  00007f3ac6d4f840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   51.730937][  T367] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.731105][  T367] CR2: 00007f3ac6f56430 CR3: 000000000c383002 CR4: 0000000000771ef0
[   51.731303][  T367] PKRU: 55555554
[   51.731400][  T367] Call Trace:
[   51.731502][  T367]  <TASK>
[   51.731570][  T367]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.731706][  T367]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.731843][  T367]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.731945][  T367]  register_netdevice (net/core/dev.c:11488)
[   51.732078][  T367]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.732240][  T367]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.732374][  T367]  register_netdev (net/core/dev.c:11552)
[   51.732509][  T367]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   51.732647][  T367]  ops_init (net/core/net_namespace.c:137)
[   51.732747][  T367]  setup_net (net/core/net_namespace.c:446)
[   51.732853][  T367]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.732983][  T367]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.733114][  T367]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.733247][  T367]  copy_net_ns (net/core/net_namespace.c:579)
[   51.733377][  T367]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.733513][  T367]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.733650][  T367]  ksys_unshare (kernel/fork.c:3243)
[   51.733782][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.733918][  T367]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.734047][  T367]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.734177][  T367]  ? __ia32_sys_open (fs/open.c:1374)
[   51.734309][  T367]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.734441][  T367]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.734570][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.734707][  T367]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.734843][  T367]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.734975][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.735135][  T367] RIP: 0033:0x7f3ac7011bcb
[   51.735271][  T367] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.735748][  T367] RSP: 002b:00007ffe71ad5828 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.735951][  T367] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3ac7011bcb
[   51.736146][  T367] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.736339][  T367] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.736538][  T367] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe71ad7a50
[   51.736739][  T367] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe71ad8886
| [   51.744402][  T367] ------------[ cut here ]------------
| [   51.744548][  T367] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/367
| [   51.744783][  T367] Modules linked in: unix_diag
| [   51.745191][  T367] Tainted: [W]=WARN
[   51.745296][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.745465][  T367] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.745639][  T367] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.746109][  T367] RSP: 0018:ffa0000000cd7a68 EFLAGS: 00010286
[   51.746277][  T367] RAX: 00000000ffffffa6 RBX: ff11000009832c80 RCX: 1ff400000019af13
[   51.746476][  T367] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009832d3c
[   51.746676][  T367] RBP: ff1100000a83c000 R08: 1fe22000013065a9 R09: ff11000005b2ae80
[   51.746878][  T367] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   51.747074][  T367] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a83c000
[   51.747272][  T367] FS:  00007f3ac6d4f840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   51.747505][  T367] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.747699][  T367] CR2: 00007f3ac6f56430 CR3: 000000000c383002 CR4: 0000000000771ef0
[   51.747902][  T367] PKRU: 55555554
[   51.748004][  T367] Call Trace:
[   51.748104][  T367]  <TASK>
[   51.748172][  T367]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.748303][  T367]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.748438][  T367]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.748539][  T367]  register_netdevice (net/core/dev.c:11488)
[   51.748678][  T367]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.748848][  T367]  register_netdev (net/core/dev.c:11552)
[   51.748982][  T367]  sit_init_net (net/ipv6/sit.c:1860)
[   51.749117][  T367]  ops_init (net/core/net_namespace.c:137)
[   51.749219][  T367]  setup_net (net/core/net_namespace.c:446)
[   51.749318][  T367]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.749451][  T367]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.749587][  T367]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.749721][  T367]  copy_net_ns (net/core/net_namespace.c:579)
[   51.749858][  T367]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.749993][  T367]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.750126][  T367]  ksys_unshare (kernel/fork.c:3243)
[   51.750257][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.750388][  T367]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.750520][  T367]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.750662][  T367]  ? __ia32_sys_open (fs/open.c:1374)
[   51.750797][  T367]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.750934][  T367]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.751066][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.751196][  T367]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.751327][  T367]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.751462][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.751628][  T367] RIP: 0033:0x7f3ac7011bcb
[   51.751764][  T367] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.752238][  T367] RSP: 002b:00007ffe71ad5828 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.752438][  T367] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3ac7011bcb
[   51.752638][  T367] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.752842][  T367] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.753038][  T367] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe71ad7a50
[   51.753233][  T367] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe71ad8886
| [   51.757945][  T367] ------------[ cut here ]------------
| [   51.758082][  T367] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/367
| [   51.758315][  T367] Modules linked in: unix_diag
| [   51.758724][  T367] Tainted: [W]=WARN
[   51.758826][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.758989][  T367] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.759159][  T367] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.759634][  T367] RSP: 0018:ffa0000000cd7a78 EFLAGS: 00010286
[   51.759799][  T367] RAX: 00000000ffffffa6 RBX: ff1100000a2eee40 RCX: 1ff400000019af15
[   51.760005][  T367] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2eeefc
[   51.760199][  T367] RBP: ff11000009df9000 R08: 1fe220000145dde1 R09: ff11000005b2ae80
[   51.760396][  T367] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   51.760598][  T367] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009df9000
[   51.760795][  T367] FS:  00007f3ac6d4f840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   51.761030][  T367] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.761197][  T367] CR2: 00007f3ac6f56430 CR3: 000000000c383002 CR4: 0000000000771ef0
[   51.761394][  T367] PKRU: 55555554
[   51.761496][  T367] Call Trace:
[   51.761596][  T367]  <TASK>
[   51.761664][  T367]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.761795][  T367]  ? notifier_call_chain (kernel/notifier.c:85)
[   51.761969][  T367]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.762068][  T367]  register_netdevice (net/core/dev.c:11488)
[   51.762209][  T367]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   51.762372][  T367]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.762510][  T367]  register_netdev (net/core/dev.c:11552)
[   51.762646][  T367]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   51.762778][  T367]  ops_init (net/core/net_namespace.c:137)
[   51.762887][  T367]  setup_net (net/core/net_namespace.c:446)
[   51.762987][  T367]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   51.763118][  T367]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   51.763248][  T367]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   51.763380][  T367]  copy_net_ns (net/core/net_namespace.c:579)
[   51.763516][  T367]  create_new_namespaces (kernel/nsproxy.c:132)
[   51.763654][  T367]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   51.763787][  T367]  ksys_unshare (kernel/fork.c:3243)
[   51.763921][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   51.764052][  T367]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   51.764182][  T367]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   51.764314][  T367]  ? __ia32_sys_open (fs/open.c:1374)
[   51.764451][  T367]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   51.764587][  T367]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   51.764717][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.764853][  T367]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.764984][  T367]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.765115][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.765277][  T367] RIP: 0033:0x7f3ac7011bcb
[   51.765415][  T367] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   51.765888][  T367] RSP: 002b:00007ffe71ad5828 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   51.766087][  T367] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3ac7011bcb
[   51.766281][  T367] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   51.766480][  T367] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   51.766679][  T367] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe71ad7a50
[   51.766880][  T367] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe71ad8886
| [   51.796257][  T368] ------------[ cut here ]------------
| [   51.796404][  T368] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/368
| [   51.796645][  T368] Modules linked in: unix_diag
| [   51.797053][  T368] Tainted: [W]=WARN
[   51.797151][  T368] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.797315][  T368] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   51.797487][  T368] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   51.797962][  T368] RSP: 0018:ffa0000000ce7020 EFLAGS: 00010286
[   51.798126][  T368] RAX: 00000000ffffffa6 RBX: ff11000013ba0900 RCX: 1ff400000019cdca
[   51.798320][  T368] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013ba09bc
[   51.798517][  T368] RBP: ff11000008c39000 R08: 1fe2200002774139 R09: ff1100000784ae58
[   51.798719][  T368] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   51.798919][  T368] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   51.799115][  T368] FS:  00007f5d0821d840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   51.799345][  T368] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.799513][  T368] CR2: 000000000ecf0988 CR3: 000000000c0f5005 CR4: 0000000000771ef0
[   51.799715][  T368] PKRU: 55555554
[   51.799818][  T368] Call Trace:
[   51.799915][  T368]  <TASK>
[   51.799982][  T368]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   51.800114][  T368]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   51.800214][  T368]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   51.800344][  T368]  __dev_notify_flags (net/core/dev.c:9787)
[   51.800480][  T368]  ? netif_change_name (net/core/dev.c:1495)
[   51.800615][  T368]  ? __dev_change_flags (net/core/dev.c:9752)
[   51.800747][  T368]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   51.800883][  T368]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.801013][  T368]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   51.801147][  T368]  netif_change_flags (net/core/dev.c:9820)
[   51.801278][  T368]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   51.801414][  T368]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   51.801547][  T368]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   51.802375][  T368]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   51.802548][  T368]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   51.802686][  T368]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   51.802821][  T368]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   51.802952][  T368]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   51.803085][  T368]  ? __kernel_text_address (kernel/extable.c:79)
[   51.803217][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   51.803351][  T368]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.803483][  T368]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   51.803621][  T368]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.803753][  T368]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   51.803886][  T368]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.804015][  T368]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.804147][  T368]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   51.804277][  T368]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   51.804411][  T368]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   51.804543][  T368]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   51.804682][  T368]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   51.804825][  T368]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   51.804960][  T368]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   51.805093][  T368]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.805224][  T368]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   51.805356][  T368]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   51.805487][  T368]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   51.805623][  T368]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.805756][  T368]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.805892][  T368]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   51.806022][  T368]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   51.806153][  T368]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   51.806283][  T368]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   51.806417][  T368]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   51.806549][  T368]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   51.806685][  T368]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   51.806823][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   51.806958][  T368]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   51.807088][  T368]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   51.807219][  T368]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   51.807350][  T368]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   51.807484][  T368]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   51.807624][  T368]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   51.807755][  T368]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   51.807894][  T368]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   51.808027][  T368]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   51.808158][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   51.808290][  T368]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   51.808423][  T368]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   51.808554][  T368]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   51.808692][  T368]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   51.808827][  T368]  ? copy_msghdr_from_user (net/socket.c:2635)
[   51.808960][  T368]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   51.809121][  T368]  ? move_addr_to_kernel (net/socket.c:258)
[   51.809253][  T368]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   51.809384][  T368]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   51.809518][  T368]  ___sys_sendmsg (net/socket.c:2752)
[   51.809655][  T368]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   51.809823][  T368]  ? copy_msghdr_from_user (net/socket.c:2603)
[   51.809966][  T368]  __sys_sendmsg (net/socket.c:2784)
[   51.810096][  T368]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   51.810226][  T368]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   51.810391][  T368]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   51.810527][  T368]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   51.810662][  T368]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   51.810792][  T368]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   51.810928][  T368]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   51.811061][  T368]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.811224][  T368] RIP: 0033:0x7f5d0845708e
[   51.811361][  T368] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   51.811839][  T368] RSP: 002b:00007ffdeeb521d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   51.812038][  T368] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5d0845708e
[   51.812235][  T368] RDX: 0000000000000000 RSI: 00007ffdeeb52280 RDI: 0000000000000005
[   51.812432][  T368] RBP: 00007ffdeeb521e0 R08: 0000000000000000 R09: 0000000000000000
[   51.812634][  T368] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d67d
[   51.812837][  T368] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdeeb52950
| [   55.040423][   T68] ------------[ cut here ]------------
| [   55.040655][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   55.040940][   T68] Modules linked in: unix_diag
| [   55.041427][   T68] Tainted: [W]=WARN
[   55.041565][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.041772][   T68] Workqueue: netns cleanup_net
[   55.041952][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.042155][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.042640][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   55.042872][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c4e18c0 RCX: 1ff4000000092eed
[   55.043093][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4e197c
[   55.043316][   T68] RBP: ff11000009df9000 R08: 1fe220000189c331 R09: ff11000008e42ed0
[   55.043542][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   55.043781][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.044041][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   55.044295][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.044526][   T68] CR2: 00007fb0cb1812a0 CR3: 00000000097f9004 CR4: 0000000000771ef0
[   55.044763][   T68] PKRU: 55555554
[   55.044906][   T68] Call Trace:
[   55.045041][   T68]  <TASK>
[   55.045149][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.045351][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.045550][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.045731][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.045908][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.046072][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.046240][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.046425][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.046631][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   55.046796][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.046988][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   55.047165][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.047341][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.047516][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.047693][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.047869][   T68]  process_one_work (kernel/workqueue.c:3314)
[   55.048043][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.048210][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.048417][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.048602][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.048769][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   55.048946][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.049112][   T68]  kthread (kernel/kthread.c:436)
[   55.049248][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.049447][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.049627][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.049796][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.050035][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.050203][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.050368][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.053065][   T68] ------------[ cut here ]------------
| [   55.053225][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   55.053509][   T68] Modules linked in: unix_diag
| [   55.054162][   T68] Tainted: [W]=WARN
[   55.054298][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.054496][   T68] Workqueue: netns cleanup_net
[   55.054680][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.054888][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.055351][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   55.055552][   T68] RAX: 00000000ffffffa6 RBX: ff1100000ca9aac0 RCX: 1ff4000000092eed
[   55.055790][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ca9ab7c
[   55.056017][   T68] RBP: ff1100000a83c000 R08: 1fe2200001953571 R09: ff11000008e42ed0
[   55.056240][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   55.056471][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.056718][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   55.056975][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.057167][   T68] CR2: 00007fb0cb1812a0 CR3: 00000000097f9004 CR4: 0000000000771ef0
[   55.057392][   T68] PKRU: 55555554
[   55.057531][   T68] Call Trace:
[   55.057680][   T68]  <TASK>
[   55.057789][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.057991][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.058187][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.058352][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.058528][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.058706][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.058884][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.059055][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.059224][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   55.059387][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.059560][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   55.059758][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.059938][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.060107][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.060274][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.060444][   T68]  process_one_work (kernel/workqueue.c:3314)
[   55.060632][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.060801][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.060978][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.061143][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.061311][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   55.061563][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.061743][   T68]  kthread (kernel/kthread.c:436)
[   55.062031][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.062232][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.062399][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.062571][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.062874][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.063045][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.063286][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.066339][   T68] ------------[ cut here ]------------
| [   55.066507][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   55.067221][   T68] Modules linked in: unix_diag
| [   55.067989][   T68] Tainted: [W]=WARN
[   55.068169][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.068408][   T68] Workqueue: netns cleanup_net
[   55.068644][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.068912][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.069425][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   55.069678][   T68] RAX: 00000000ffffffa6 RBX: ff1100000ca9b1c0 RCX: 1ff4000000092eed
[   55.069954][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ca9b27c
[   55.070217][   T68] RBP: ff11000005239000 R08: 1fe2200001953651 R09: ff11000008e42ed0
[   55.070485][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   55.070764][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.071043][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   55.071367][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.071675][   T68] CR2: 00007fb0cb1812a0 CR3: 00000000097f9004 CR4: 0000000000771ef0
[   55.072010][   T68] PKRU: 55555554
[   55.072232][   T68] Call Trace:
[   55.072465][   T68]  <TASK>
[   55.072680][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.072964][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.073158][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.073327][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.073500][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.073680][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.073853][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.074025][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.074194][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   55.074360][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.074535][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   55.074716][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.074891][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.075062][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.075227][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.075394][   T68]  process_one_work (kernel/workqueue.c:3314)
[   55.075570][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.075751][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.075931][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.076101][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.076267][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   55.076436][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.076647][   T68]  kthread (kernel/kthread.c:436)
[   55.076814][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.077019][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.077185][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.077352][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.077553][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.077731][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.077907][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.081002][   T68] ------------[ cut here ]------------
| [   55.081162][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   55.081511][   T68] Modules linked in: unix_diag
| [   55.082334][   T68] Tainted: [W]=WARN
[   55.082520][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.082773][   T68] Workqueue: netns cleanup_net
[   55.082997][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.083245][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.083777][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   55.084026][   T68] RAX: 00000000ffffffa6 RBX: ff1100000ca9b540 RCX: 1ff4000000092eed
[   55.084293][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ca9b5fc
[   55.084564][   T68] RBP: ff11000009e14000 R08: 1fe22000019536c1 R09: ff11000008e42ed0
[   55.084851][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   55.085116][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.085386][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   55.085701][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.085951][   T68] CR2: 00007fb0cb1812a0 CR3: 00000000097f9004 CR4: 0000000000771ef0
[   55.086221][   T68] PKRU: 55555554
[   55.086400][   T68] Call Trace:
[   55.086598][   T68]  <TASK>
[   55.086754][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.087004][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.087242][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.087461][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.087690][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.087908][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.088120][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.088333][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.088557][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   55.088779][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.089002][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   55.089225][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.089495][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.089773][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.090039][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.090299][   T68]  process_one_work (kernel/workqueue.c:3314)
[   55.090487][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.090661][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.090837][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.091008][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.091172][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   55.091339][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.091513][   T68]  kthread (kernel/kthread.c:436)
[   55.091662][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.091864][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.092033][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.092200][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.092393][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.092562][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.092741][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.095133][   T68] ------------[ cut here ]------------
| [   55.095290][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   55.095570][   T68] Modules linked in: unix_diag
| [   55.096760][   T68] Tainted: [W]=WARN
[   55.096943][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.097180][   T68] Workqueue: netns cleanup_net
[   55.097394][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.097655][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.098165][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   55.098400][   T68] RAX: 00000000ffffffa6 RBX: ff1100000ca9b8c0 RCX: 1ff4000000092eed
[   55.098677][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ca9b97c
[   55.098943][   T68] RBP: ff11000007fa9000 R08: 1fe2200001953731 R09: ff11000008e42ed0
[   55.099210][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   55.099474][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.099751][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   55.100052][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.100288][   T68] CR2: 00007fb0cb1812a0 CR3: 00000000097f9004 CR4: 0000000000771ef0
[   55.100557][   T68] PKRU: 55555554
[   55.100746][   T68] Call Trace:
[   55.100930][   T68]  <TASK>
[   55.101083][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.101322][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.101564][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   55.101790][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   55.102001][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.102207][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   55.102416][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.102640][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   55.102885][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   55.103091][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.103300][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   55.103519][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.103776][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.104039][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.104306][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.104566][   T68]  process_one_work (kernel/workqueue.c:3314)
[   55.104842][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.105095][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.105352][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.105535][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.105709][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   55.105883][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.106048][   T68]  kthread (kernel/kthread.c:436)
[   55.106184][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.106373][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.106544][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.106725][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.106923][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.107089][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.107252][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.122961][  T384] ------------[ cut here ]------------
| [   55.123105][  T384] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/384
| [   55.123329][  T384] Modules linked in: unix_diag
| [   55.124240][  T384] Tainted: [W]=WARN
[   55.124341][  T384] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.124508][  T384] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.124683][  T384] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.125146][  T384] RSP: 0018:ffa0000000c57a80 EFLAGS: 00010286
[   55.125311][  T384] RAX: 00000000ffffffa6 RBX: ff11000013baaac0 RCX: 1ff400000018af16
[   55.125505][  T384] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013baab7c
[   55.125703][  T384] RBP: ff11000005111000 R08: 1fe2200002775571 R09: ff11000005300b80
[   55.125900][  T384] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   55.126098][  T384] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005111000
[   55.126294][  T384] FS:  00007f4c04f6b840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   55.126523][  T384] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.126691][  T384] CR2: 00007f4c0516cc20 CR3: 00000000142fd003 CR4: 0000000000771ef0
[   55.126891][  T384] PKRU: 55555554
[   55.126989][  T384] Call Trace:
[   55.127085][  T384]  <TASK>
[   55.127152][  T384]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   55.127283][  T384]  ? notifier_call_chain (kernel/notifier.c:85)
[   55.127418][  T384]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   55.127517][  T384]  register_netdevice (net/core/dev.c:11488)
[   55.127654][  T384]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   55.127818][  T384]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   55.127958][  T384]  register_netdev (net/core/dev.c:11552)
[   55.128089][  T384]  loopback_net_init (drivers/net/loopback.c:218)
[   55.128221][  T384]  ops_init (net/core/net_namespace.c:137)
[   55.128319][  T384]  setup_net (net/core/net_namespace.c:446)
[   55.128420][  T384]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   55.128551][  T384]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   55.128688][  T384]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   55.128819][  T384]  copy_net_ns (net/core/net_namespace.c:579)
[   55.128957][  T384]  create_new_namespaces (kernel/nsproxy.c:132)
[   55.129089][  T384]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   55.129218][  T384]  ksys_unshare (kernel/fork.c:3243)
[   55.129349][  T384]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   55.129483][  T384]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   55.129620][  T384]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   55.129753][  T384]  ? __ia32_sys_open (fs/open.c:1374)
[   55.129890][  T384]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   55.130019][  T384]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   55.130148][  T384]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   55.130277][  T384]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   55.130410][  T384]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   55.130541][  T384]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   55.130710][  T384] RIP: 0033:0x7f4c0522dbcb
[   55.130854][  T384] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   55.131319][  T384] RSP: 002b:00007ffd1ba0d468 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   55.131518][  T384] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4c0522dbcb
[   55.131716][  T384] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   55.131915][  T384] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   55.132107][  T384] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd1ba0f690
[   55.132302][  T384] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd1ba11886
| [   55.133877][   T68] ------------[ cut here ]------------
| [   55.134042][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   55.134330][   T68] Modules linked in: unix_diag
| [   55.134847][   T68] Tainted: [W]=WARN
[   55.134988][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.135187][   T68] Workqueue: netns cleanup_net
[   55.135364][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.135576][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.136074][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   55.136274][   T68] RAX: 00000000ffffffa6 RBX: ff110000050063c0 RCX: 1ff4000000092eaf
[   55.136512][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000500647c
[   55.136750][   T68] RBP: ff11000008c39000 R08: 1fe2200000a00c91 R09: ff11000008e42ed0
[   55.136985][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   55.137211][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   55.137444][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   55.137716][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.137925][   T68] CR2: 00007fb0cb1812a0 CR3: 00000000097f9004 CR4: 0000000000771ef0
[   55.138154][   T68] PKRU: 55555554
[   55.138290][   T68] Call Trace:
[   55.138434][   T68]  <TASK>
[   55.138545][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   55.138726][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   55.138870][   T68]  netif_close_many (net/core/dev.c:1804)
[   55.139045][   T68]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   55.139218][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   55.139387][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   55.139604][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   55.139808][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   55.139984][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   55.140153][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   55.140323][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.140532][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   55.140719][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   55.140899][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   55.141072][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   55.141240][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   55.141414][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   55.141603][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   55.141770][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.141953][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   55.142125][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.142292][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.142472][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.142654][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.142832][   T68]  process_one_work (kernel/workqueue.c:3314)
[   55.143009][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.143178][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.143350][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.143527][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.143713][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   55.143893][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.144065][   T68]  kthread (kernel/kthread.c:436)
[   55.144204][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.144401][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.144578][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.144763][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.144976][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.145148][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.145318][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.147993][   T68] ------------[ cut here ]------------
| [   55.148157][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   55.148433][   T68] Modules linked in: unix_diag
| [   55.149402][   T68] Tainted: [W]=WARN
[   55.149612][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.149861][   T68] Workqueue: netns cleanup_net
[   55.150082][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.150348][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.150887][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   55.151133][   T68] RAX: 00000000ffffffa6 RBX: ff11000013bac900 RCX: 1ff4000000092ed5
[   55.151399][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013bac9bc
[   55.151682][   T68] RBP: ff11000008c39000 R08: 1fe2200002775939 R09: ff11000008e42ed0
[   55.151958][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   55.152237][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   55.152520][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   55.152836][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.153058][   T68] CR2: 00007fb0cb1812a0 CR3: 00000000097f9004 CR4: 0000000000771ef0
[   55.153281][   T68] PKRU: 55555554
[   55.153418][   T68] Call Trace:
[   55.153556][   T68]  <TASK>
[   55.153674][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   55.153882][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   55.154079][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   55.154246][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   55.154416][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   55.154600][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   55.154767][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   55.154945][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   55.155115][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   55.155280][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.155454][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   55.155634][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   55.155798][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   55.155977][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.156141][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.156307][   T68]  process_one_work (kernel/workqueue.c:3314)
[   55.156486][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   55.156661][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.156837][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   55.157008][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.157176][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   55.157343][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   55.157514][   T68]  kthread (kernel/kthread.c:436)
[   55.157661][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   55.157862][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.158032][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   55.158198][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   55.158396][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   55.158569][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   55.158747][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   55.168536][  T384] ------------[ cut here ]------------
| [   55.168684][  T384] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/384
| [   55.168915][  T384] Modules linked in: unix_diag
| [   55.169309][  T384] Tainted: [W]=WARN
[   55.169409][  T384] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.169575][  T384] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.169749][  T384] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.170215][  T384] RSP: 0018:ffa0000000c57918 EFLAGS: 00010286
[   55.170380][  T384] RAX: 00000000ffffffa6 RBX: ff1100000d52c580 RCX: 1ff400000018aee9
[   55.170578][  T384] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d52c63c
[   55.170775][  T384] RBP: ff11000007861000 R08: 1fe2200001aa58c9 R09: ff11000005300b80
[   55.170975][  T384] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   55.171169][  T384] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007861000
[   55.171367][  T384] FS:  00007f4c04f6b840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   55.171599][  T384] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.171762][  T384] CR2: 00007f4c0516cc20 CR3: 00000000142fd003 CR4: 0000000000771ef0
[   55.171964][  T384] PKRU: 55555554
[   55.172062][  T384] Call Trace:
[   55.172161][  T384]  <TASK>
[   55.172228][  T384]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   55.172358][  T384]  ? notifier_call_chain (kernel/notifier.c:85)
[   55.172493][  T384]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   55.172598][  T384]  register_netdevice (net/core/dev.c:11488)
[   55.172729][  T384]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   55.172896][  T384]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   55.173033][  T384]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   55.173163][  T384]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   55.173291][  T384]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   55.173424][  T384]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   55.173555][  T384]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   55.173692][  T384]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   55.173829][  T384]  ops_init (net/core/net_namespace.c:137)
[   55.173930][  T384]  setup_net (net/core/net_namespace.c:446)
[   55.174032][  T384]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   55.174160][  T384]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   55.174289][  T384]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   55.174422][  T384]  copy_net_ns (net/core/net_namespace.c:579)
[   55.174555][  T384]  create_new_namespaces (kernel/nsproxy.c:132)
[   55.174693][  T384]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   55.174828][  T384]  ksys_unshare (kernel/fork.c:3243)
[   55.174963][  T384]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   55.175093][  T384]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   55.175221][  T384]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   55.175354][  T384]  ? __ia32_sys_open (fs/open.c:1374)
[   55.175486][  T384]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   55.175620][  T384]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   55.175749][  T384]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   55.175886][  T384]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   55.176015][  T384]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   55.176143][  T384]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   55.176303][  T384] RIP: 0033:0x7f4c0522dbcb
[   55.176441][  T384] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   55.176913][  T384] RSP: 002b:00007ffd1ba0d468 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   55.177110][  T384] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4c0522dbcb
[   55.177302][  T384] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   55.177498][  T384] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   55.177696][  T384] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd1ba0f690
[   55.177896][  T384] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd1ba11886
| [   55.181711][  T384] ------------[ cut here ]------------
| [   55.181852][  T384] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/384
| [   55.182079][  T384] Modules linked in: unix_diag
| [   55.182484][  T384] Tainted: [W]=WARN
[   55.182589][  T384] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.182754][  T384] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.182928][  T384] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.183396][  T384] RSP: 0018:ffa0000000c578f8 EFLAGS: 00010286
[   55.183567][  T384] RAX: 00000000ffffffa6 RBX: ff1100000ccd2900 RCX: 1ff400000018aee5
[   55.183770][  T384] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ccd29bc
[   55.183975][  T384] RBP: ff11000007869000 R08: 1fe220000199a539 R09: ff11000005300b80
[   55.184174][  T384] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   55.184371][  T384] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007869000
[   55.184573][  T384] FS:  00007f4c04f6b840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   55.184807][  T384] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.184981][  T384] CR2: 00007f4c0516cc20 CR3: 00000000142fd003 CR4: 0000000000771ef0
[   55.185179][  T384] PKRU: 55555554
[   55.185277][  T384] Call Trace:
[   55.185375][  T384]  <TASK>
[   55.185446][  T384]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   55.185577][  T384]  ? notifier_call_chain (kernel/notifier.c:85)
[   55.185715][  T384]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   55.185817][  T384]  register_netdevice (net/core/dev.c:11488)
[   55.185955][  T384]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   55.186119][  T384]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   55.186255][  T384]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   55.186387][  T384]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   55.186519][  T384]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   55.186657][  T384]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   55.186787][  T384]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   55.186925][  T384]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   55.187058][  T384]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   55.187192][  T384]  vti_init_net (net/ipv4/ip_vti.c:517)
[   55.187325][  T384]  ops_init (net/core/net_namespace.c:137)
[   55.187430][  T384]  setup_net (net/core/net_namespace.c:446)
[   55.187529][  T384]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   55.187665][  T384]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   55.187796][  T384]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   55.187936][  T384]  copy_net_ns (net/core/net_namespace.c:579)
[   55.188069][  T384]  create_new_namespaces (kernel/nsproxy.c:132)
[   55.188206][  T384]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   55.188338][  T384]  ksys_unshare (kernel/fork.c:3243)
[   55.188472][  T384]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   55.188611][  T384]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   55.188744][  T384]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   55.188883][  T384]  ? __ia32_sys_open (fs/open.c:1374)
[   55.189016][  T384]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   55.189148][  T384]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   55.189279][  T384]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   55.189412][  T384]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   55.189544][  T384]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   55.189682][  T384]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   55.189852][  T384] RIP: 0033:0x7f4c0522dbcb
[   55.189990][  T384] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   55.190458][  T384] RSP: 002b:00007ffd1ba0d468 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   55.190661][  T384] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4c0522dbcb
[   55.190862][  T384] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   55.191061][  T384] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   55.191257][  T384] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd1ba0f690
[   55.191456][  T384] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd1ba11886
| [   55.195551][  T384] ------------[ cut here ]------------
| [   55.195691][  T384] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/384
| [   55.195924][  T384] Modules linked in: unix_diag
| [   55.196322][  T384] Tainted: [W]=WARN
[   55.196422][  T384] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.196591][  T384] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.196764][  T384] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.197235][  T384] RSP: 0018:ffa0000000c57a78 EFLAGS: 00010286
[   55.197401][  T384] RAX: 00000000ffffffa6 RBX: ff1100000c5e9e00 RCX: 1ff400000018af15
[   55.197605][  T384] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c5e9ebc
[   55.197800][  T384] RBP: ff11000009024000 R08: 1fe22000018bd3d9 R09: ff11000005300b80
[   55.198002][  T384] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   55.198196][  T384] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009024000
[   55.198394][  T384] FS:  00007f4c04f6b840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   55.198630][  T384] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.198795][  T384] CR2: 00007f4c0516cc20 CR3: 00000000142fd003 CR4: 0000000000771ef0
[   55.198999][  T384] PKRU: 55555554
[   55.199097][  T384] Call Trace:
[   55.199193][  T384]  <TASK>
[   55.199260][  T384]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   55.199391][  T384]  ? notifier_call_chain (kernel/notifier.c:85)
[   55.199527][  T384]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   55.199631][  T384]  register_netdevice (net/core/dev.c:11488)
[   55.199766][  T384]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   55.199930][  T384]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.200066][  T384]  register_netdev (net/core/dev.c:11552)
[   55.200196][  T384]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   55.200328][  T384]  ops_init (net/core/net_namespace.c:137)
[   55.200432][  T384]  setup_net (net/core/net_namespace.c:446)
[   55.200532][  T384]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   55.200669][  T384]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   55.200800][  T384]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   55.200936][  T384]  copy_net_ns (net/core/net_namespace.c:579)
[   55.201069][  T384]  create_new_namespaces (kernel/nsproxy.c:132)
[   55.201203][  T384]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   55.201336][  T384]  ksys_unshare (kernel/fork.c:3243)
[   55.201471][  T384]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   55.201610][  T384]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   55.201740][  T384]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   55.201878][  T384]  ? __ia32_sys_open (fs/open.c:1374)
[   55.202011][  T384]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   55.202142][  T384]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   55.202273][  T384]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   55.202403][  T384]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   55.202537][  T384]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   55.202676][  T384]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   55.202845][  T384] RIP: 0033:0x7f4c0522dbcb
[   55.202980][  T384] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   55.203446][  T384] RSP: 002b:00007ffd1ba0d468 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   55.203650][  T384] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4c0522dbcb
[   55.203852][  T384] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   55.204046][  T384] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   55.204241][  T384] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd1ba0f690
[   55.204440][  T384] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd1ba11886
| [   55.208536][  T384] ------------[ cut here ]------------
| [   55.208674][  T384] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/384
| [   55.208902][  T384] Modules linked in: unix_diag
| [   55.209299][  T384] Tainted: [W]=WARN
[   55.209398][  T384] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.209564][  T384] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.209740][  T384] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.210207][  T384] RSP: 0018:ffa0000000c57a68 EFLAGS: 00010286
[   55.210371][  T384] RAX: 00000000ffffffa6 RBX: ff1100000b9c9a80 RCX: 1ff400000018af13
[   55.210570][  T384] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b9c9b3c
[   55.210769][  T384] RBP: ff11000008b59000 R08: 1fe2200001739369 R09: ff11000005300b80
[   55.210973][  T384] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   55.211167][  T384] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b59000
[   55.211363][  T384] FS:  00007f4c04f6b840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   55.211599][  T384] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.211762][  T384] CR2: 00007f4c0516cc20 CR3: 00000000142fd003 CR4: 0000000000771ef0
[   55.211967][  T384] PKRU: 55555554
[   55.212063][  T384] Call Trace:
[   55.212160][  T384]  <TASK>
[   55.212228][  T384]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   55.212360][  T384]  ? notifier_call_chain (kernel/notifier.c:85)
[   55.212494][  T384]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   55.212598][  T384]  register_netdevice (net/core/dev.c:11488)
[   55.212730][  T384]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   55.212901][  T384]  register_netdev (net/core/dev.c:11552)
[   55.213034][  T384]  sit_init_net (net/ipv6/sit.c:1860)
[   55.213165][  T384]  ops_init (net/core/net_namespace.c:137)
[   55.213266][  T384]  setup_net (net/core/net_namespace.c:446)
[   55.213364][  T384]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   55.213498][  T384]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   55.213631][  T384]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   55.213765][  T384]  copy_net_ns (net/core/net_namespace.c:579)
[   55.213900][  T384]  create_new_namespaces (kernel/nsproxy.c:132)
[   55.214035][  T384]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   55.214167][  T384]  ksys_unshare (kernel/fork.c:3243)
[   55.214298][  T384]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   55.214431][  T384]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   55.214561][  T384]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   55.214696][  T384]  ? __ia32_sys_open (fs/open.c:1374)
[   55.214832][  T384]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   55.214962][  T384]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   55.215092][  T384]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   55.215222][  T384]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   55.215352][  T384]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   55.215484][  T384]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   55.215652][  T384] RIP: 0033:0x7f4c0522dbcb
[   55.215787][  T384] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   55.216257][  T384] RSP: 002b:00007ffd1ba0d468 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   55.216454][  T384] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4c0522dbcb
[   55.216652][  T384] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   55.216854][  T384] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   55.217051][  T384] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd1ba0f690
[   55.217245][  T384] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd1ba11886
| [   55.227944][  T384] ------------[ cut here ]------------
| [   55.228083][  T384] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/384
| [   55.228309][  T384] Modules linked in: unix_diag
| [   55.228712][  T384] Tainted: [W]=WARN
[   55.228814][  T384] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.228983][  T384] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.229152][  T384] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.230165][  T384] RSP: 0018:ffa0000000c57a78 EFLAGS: 00010286
[   55.230331][  T384] RAX: 00000000ffffffa6 RBX: ff1100000cf34ac0 RCX: 1ff400000018af15
[   55.230531][  T384] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf34b7c
[   55.230783][  T384] RBP: ff110000086b1000 R08: 1fe22000019e6971 R09: ff11000005300b80
[   55.230984][  T384] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   55.231180][  T384] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000086b1000
[   55.231377][  T384] FS:  00007f4c04f6b840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   55.231666][  T384] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.231835][  T384] CR2: 00007f4c0516cc20 CR3: 00000000142fd003 CR4: 0000000000771ef0
[   55.232037][  T384] PKRU: 55555554
[   55.232134][  T384] Call Trace:
[   55.232232][  T384]  <TASK>
[   55.232356][  T384]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   55.232488][  T384]  ? notifier_call_chain (kernel/notifier.c:85)
[   55.232676][  T384]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   55.232776][  T384]  register_netdevice (net/core/dev.c:11488)
[   55.232913][  T384]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   55.233077][  T384]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.233209][  T384]  register_netdev (net/core/dev.c:11552)
[   55.233339][  T384]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   55.233474][  T384]  ops_init (net/core/net_namespace.c:137)
[   55.233574][  T384]  setup_net (net/core/net_namespace.c:446)
[   55.233729][  T384]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   55.233863][  T384]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   55.233994][  T384]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   55.234126][  T384]  copy_net_ns (net/core/net_namespace.c:579)
[   55.234257][  T384]  create_new_namespaces (kernel/nsproxy.c:132)
[   55.234391][  T384]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   55.234527][  T384]  ksys_unshare (kernel/fork.c:3243)
[   55.234711][  T384]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   55.234848][  T384]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   55.234979][  T384]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   55.235111][  T384]  ? __ia32_sys_open (fs/open.c:1374)
[   55.235246][  T384]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   55.235375][  T384]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   55.235509][  T384]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   55.235695][  T384]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   55.235833][  T384]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   55.235966][  T384]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   55.236129][  T384] RIP: 0033:0x7f4c0522dbcb
[   55.236263][  T384] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   55.236784][  T384] RSP: 002b:00007ffd1ba0d468 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   55.236986][  T384] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4c0522dbcb
[   55.237181][  T384] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   55.237372][  T384] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   55.237568][  T384] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd1ba0f690
[   55.237818][  T384] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffd1ba11886
| [   55.271493][  T385] ------------[ cut here ]------------
| [   55.271648][  T385] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/385
| [   55.271883][  T385] Modules linked in: unix_diag
| [   55.272283][  T385] Tainted: [W]=WARN
[   55.272382][  T385] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   55.272548][  T385] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   55.272724][  T385] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   55.273192][  T385] RSP: 0018:ffa0000000d47020 EFLAGS: 00010286
[   55.273367][  T385] RAX: 00000000ffffffa6 RBX: ff1100000cf35000 RCX: 1ff40000001a8dca
[   55.273565][  T385] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cf350bc
[   55.273768][  T385] RBP: ff11000005111000 R08: 1fe22000019e6a19 R09: ff11000005305158
[   55.273967][  T385] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   55.274158][  T385] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   55.274354][  T385] FS:  00007f0ba0b96840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   55.274588][  T385] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.274753][  T385] CR2: 000000003c637988 CR3: 00000000142f1005 CR4: 0000000000771ef0
[   55.274950][  T385] PKRU: 55555554
[   55.275047][  T385] Call Trace:
[   55.275142][  T385]  <TASK>
[   55.275209][  T385]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   55.275341][  T385]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   55.275444][  T385]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   55.275575][  T385]  __dev_notify_flags (net/core/dev.c:9787)
[   55.275716][  T385]  ? netif_change_name (net/core/dev.c:1495)
[   55.275851][  T385]  ? __dev_change_flags (net/core/dev.c:9752)
[   55.275981][  T385]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   55.276110][  T385]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.276240][  T385]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   55.276373][  T385]  netif_change_flags (net/core/dev.c:9820)
[   55.276508][  T385]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   55.277205][  T385]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   55.277339][  T385]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   55.277473][  T385]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   55.277646][  T385]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   55.277777][  T385]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   55.277912][  T385]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   55.278042][  T385]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   55.278173][  T385]  ? __kernel_text_address (kernel/extable.c:79)
[   55.278305][  T385]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   55.278440][  T385]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.278569][  T385]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   55.278706][  T385]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.278839][  T385]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   55.278971][  T385]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.279102][  T385]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.279233][  T385]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   55.279363][  T385]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   55.279496][  T385]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   55.279631][  T385]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   55.279764][  T385]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   55.279900][  T385]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   55.280038][  T385]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   55.280170][  T385]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.280299][  T385]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   55.280434][  T385]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   55.280564][  T385]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   55.280699][  T385]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.280838][  T385]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.280970][  T385]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   55.281101][  T385]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   55.281230][  T385]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   55.281361][  T385]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   55.281496][  T385]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   55.281630][  T385]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   55.281760][  T385]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   55.281896][  T385]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   55.282030][  T385]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   55.282161][  T385]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   55.282293][  T385]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   55.282427][  T385]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   55.282559][  T385]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   55.282696][  T385]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   55.282832][  T385]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   55.282965][  T385]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   55.283098][  T385]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   55.283228][  T385]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   55.283360][  T385]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   55.283496][  T385]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   55.283632][  T385]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   55.283768][  T385]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   55.283905][  T385]  ? copy_msghdr_from_user (net/socket.c:2635)
[   55.284035][  T385]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   55.284198][  T385]  ? move_addr_to_kernel (net/socket.c:258)
[   55.284328][  T385]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   55.284462][  T385]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   55.284598][  T385]  ___sys_sendmsg (net/socket.c:2752)
[   55.284727][  T385]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   55.284891][  T385]  ? copy_msghdr_from_user (net/socket.c:2603)
[   55.285035][  T385]  __sys_sendmsg (net/socket.c:2784)
[   55.285167][  T385]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   55.285295][  T385]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   55.285461][  T385]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   55.285597][  T385]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   55.285729][  T385]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   55.285863][  T385]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   55.285992][  T385]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   55.286124][  T385]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   55.286285][  T385] RIP: 0033:0x7f0ba0dd008e
[   55.286423][  T385] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   55.286894][  T385] RSP: 002b:00007ffdd0db3860 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   55.287093][  T385] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0ba0dd008e
[   55.287285][  T385] RDX: 0000000000000000 RSI: 00007ffdd0db3910 RDI: 0000000000000005
[   55.287482][  T385] RBP: 00007ffdd0db3870 R08: 0000000000000000 R09: 0000000000000000
[   55.287684][  T385] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d680
[   55.287885][  T385] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdd0db3fe0
| [   60.495332][   T68] ------------[ cut here ]------------
| [   60.495538][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   60.495846][   T68] Modules linked in: unix_diag
| [   60.496340][   T68] Tainted: [W]=WARN
[   60.496483][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.496694][   T68] Workqueue: netns cleanup_net
[   60.496875][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   60.497076][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   60.497550][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   60.497756][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cb5da80 RCX: 1ff4000000092eed
[   60.498608][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cb5db3c
[   60.498830][   T68] RBP: ff110000086b1000 R08: 1fe220000196bb69 R09: ff11000008e42ed0
[   60.499058][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   60.499279][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   60.499511][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   60.499777][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.499988][   T68] CR2: 00007f95c04df000 CR3: 000000004d34d004 CR4: 0000000000771ef0
[   60.500212][   T68] PKRU: 55555554
[   60.500347][   T68] Call Trace:
[   60.500487][   T68]  <TASK>
[   60.500609][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   60.500809][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   60.501011][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   60.501180][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   60.501345][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   60.501514][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   60.501690][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   60.501894][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   60.502061][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   60.502224][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   60.502393][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   60.502566][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   60.502749][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   60.502924][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   60.503092][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   60.503259][   T68]  process_one_work (kernel/workqueue.c:3314)
[   60.503432][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   60.503611][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   60.503781][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   60.503958][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   60.504152][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   60.504320][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   60.504492][   T68]  kthread (kernel/kthread.c:436)
[   60.504642][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   60.504845][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   60.505010][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   60.505181][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   60.505377][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   60.505549][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   60.505723][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   60.508440][   T68] ------------[ cut here ]------------
| [   60.508613][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   60.508920][   T68] Modules linked in: unix_diag
| [   60.509407][   T68] Tainted: [W]=WARN
[   60.509547][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.509750][   T68] Workqueue: netns cleanup_net
[   60.509928][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   60.510129][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   60.510612][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   60.510807][   T68] RAX: 00000000ffffffa6 RBX: ff11000008f1c3c0 RCX: 1ff4000000092eed
[   60.511036][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f1c47c
[   60.511256][   T68] RBP: ff11000008b59000 R08: 1fe22000011e3891 R09: ff11000008e42ed0
[   60.511484][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   60.511720][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   60.511956][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   60.512209][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.512404][   T68] CR2: 00007f95c04df000 CR3: 000000004d34d004 CR4: 0000000000771ef0
[   60.512653][   T68] PKRU: 55555554
[   60.512788][   T68] Call Trace:
[   60.512933][   T68]  <TASK>
[   60.513045][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   60.513242][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   60.513439][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   60.513621][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   60.513788][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   60.513962][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   60.514129][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   60.514297][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   60.514473][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   60.514653][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   60.514821][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   60.515001][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   60.515164][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   60.515334][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   60.515506][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   60.515686][   T68]  process_one_work (kernel/workqueue.c:3314)
[   60.515864][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   60.516031][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   60.516201][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   60.516370][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   60.516543][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   60.516725][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   60.516897][   T68]  kthread (kernel/kthread.c:436)
[   60.517033][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   60.517226][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   60.517395][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   60.517594][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   60.517786][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   60.517993][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   60.518162][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   60.521029][   T68] ------------[ cut here ]------------
| [   60.521190][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   60.521478][   T68] Modules linked in: unix_diag
| [   60.521983][   T68] Tainted: [W]=WARN
[   60.522119][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.522312][   T68] Workqueue: netns cleanup_net
[   60.522490][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   60.522705][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   60.523180][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   60.523403][   T68] RAX: 00000000ffffffa6 RBX: ff11000008f1cac0 RCX: 1ff4000000092eed
[   60.523679][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f1cb7c
[   60.523917][   T68] RBP: ff11000009024000 R08: 1fe22000011e3971 R09: ff11000008e42ed0
[   60.524148][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   60.524374][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   60.524618][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   60.524884][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.525080][   T68] CR2: 00007f95c04df000 CR3: 000000004d34d004 CR4: 0000000000771ef0
[   60.525303][   T68] PKRU: 55555554
[   60.525439][   T68] Call Trace:
[   60.525575][   T68]  <TASK>
[   60.525696][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   60.525933][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   60.526138][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   60.526304][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   60.526479][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   60.526659][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   60.526825][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   60.527002][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   60.527171][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   60.527334][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   60.527513][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   60.527693][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   60.527866][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   60.528034][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   60.528198][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   60.528442][   T68]  process_one_work (kernel/workqueue.c:3314)
[   60.528628][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   60.528792][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   60.528970][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   60.529139][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   60.529306][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   60.529554][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   60.529733][   T68]  kthread (kernel/kthread.c:436)
[   60.529876][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   60.530071][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   60.530309][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   60.530485][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   60.530692][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   60.530864][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   60.531031][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   60.533731][   T68] ------------[ cut here ]------------
| [   60.533898][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   60.534247][   T68] Modules linked in: unix_diag
| [   60.535318][   T68] Tainted: [W]=WARN
[   60.535513][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.535773][   T68] Workqueue: netns cleanup_net
[   60.536000][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   60.536253][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   60.536786][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   60.537038][   T68] RAX: 00000000ffffffa6 RBX: ff11000008f1ce40 RCX: 1ff4000000092eed
[   60.537307][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f1cefc
[   60.537605][   T68] RBP: ff11000007869000 R08: 1fe22000011e39e1 R09: ff11000008e42ed0
[   60.537884][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   60.538157][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   60.538437][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   60.538757][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.539013][   T68] CR2: 00007f95c04df000 CR3: 000000004d34d004 CR4: 0000000000771ef0
[   60.539289][   T68] PKRU: 55555554
[   60.539475][   T68] Call Trace:
[   60.539673][   T68]  <TASK>
[   60.539830][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   60.540084][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   60.540326][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   60.540574][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   60.540851][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   60.541018][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   60.541187][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   60.541356][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   60.541533][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   60.541712][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   60.541961][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   60.542159][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   60.542323][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   60.542499][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   60.542764][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   60.542941][   T68]  process_one_work (kernel/workqueue.c:3314)
[   60.543114][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   60.543280][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   60.543458][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   60.543637][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   60.543805][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   60.543982][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   60.544149][   T68]  kthread (kernel/kthread.c:436)
[   60.544284][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   60.544499][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   60.544710][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   60.544895][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   60.545161][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   60.545329][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   60.545502][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   60.548324][   T68] ------------[ cut here ]------------
| [   60.548485][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   60.549380][   T68] Modules linked in: unix_diag
| [   60.550104][   T68] Tainted: [W]=WARN
[   60.550285][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.550534][   T68] Workqueue: netns cleanup_net
[   60.550763][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   60.551022][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   60.551538][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   60.551791][   T68] RAX: 00000000ffffffa6 RBX: ff11000008f1d1c0 RCX: 1ff4000000092eed
[   60.552064][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f1d27c
[   60.552328][   T68] RBP: ff11000007861000 R08: 1fe22000011e3a51 R09: ff11000008e42ed0
[   60.552616][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   60.552898][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   60.553168][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   60.553470][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.553723][   T68] CR2: 00007f95c04df000 CR3: 000000004d34d004 CR4: 0000000000771ef0
[   60.554008][   T68] PKRU: 55555554
[   60.554187][   T68] Call Trace:
[   60.554364][   T68]  <TASK>
[   60.554525][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   60.554781][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   60.555027][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   60.555241][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   60.555459][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   60.555678][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   60.555894][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   60.556111][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   60.556326][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   60.556540][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   60.556764][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   60.557048][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   60.557291][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   60.557566][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   60.557830][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   60.558093][   T68]  process_one_work (kernel/workqueue.c:3314)
[   60.558350][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   60.558625][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   60.558894][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   60.559121][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   60.559368][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   60.559600][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   60.559808][   T68]  kthread (kernel/kthread.c:436)
[   60.559996][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   60.560232][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   60.560449][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   60.560674][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   60.560918][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   60.561128][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   60.561339][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   60.577388][   T68] ------------[ cut here ]------------
| [   60.577533][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   60.577810][   T68] Modules linked in: unix_diag
| [   60.578233][   T68] Tainted: [W]=WARN
[   60.578326][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.578483][   T68] Workqueue: netns cleanup_net
[   60.578617][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   60.578776][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   60.579229][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   60.579384][   T68] RAX: 00000000ffffffa6 RBX: ff11000008f1d000 RCX: 1ff4000000092eaf
[   60.579570][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f1d0bc
[   60.579764][   T68] RBP: ff11000005111000 R08: 1fe22000011e3a19 R09: ff11000008e42ed0
[   60.579956][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[   60.580138][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   60.580322][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   60.580540][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.580703][   T68] CR2: 00007f332438dac8 CR3: 000000004d34d003 CR4: 0000000000771ef0
[   60.580895][   T68] PKRU: 55555554
[   60.580988][   T68] Call Trace:
[   60.581079][   T68]  <TASK>
[   60.581144][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   60.581269][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   60.581364][   T68]  netif_close_many (net/core/dev.c:1804)
[   60.581490][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   60.581620][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   60.581742][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   60.581870][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   60.581993][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   60.582155][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   60.582308][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   60.582433][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   60.582553][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   60.582684][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   60.582844][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   60.582972][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   60.583095][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   60.583218][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   60.583341][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   60.583470][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   60.583598][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   60.583718][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   60.583849][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   60.584282][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   60.584406][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   60.584532][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   60.584661][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   60.584785][   T68]  process_one_work (kernel/workqueue.c:3314)
[   60.584914][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   60.585041][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   60.585167][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   60.585289][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   60.585413][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   60.585536][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   60.585663][   T68]  kthread (kernel/kthread.c:436)
[   60.585756][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   60.585917][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   60.586039][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   60.586162][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   60.586315][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   60.586441][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   60.586565][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   60.588882][   T68] ------------[ cut here ]------------
| [   60.589007][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   60.589239][   T68] Modules linked in: unix_diag
| [   60.589646][   T68] Tainted: [W]=WARN
[   60.589735][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.589890][   T68] Workqueue: netns cleanup_net
[   60.590012][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   60.590167][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   60.590604][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   60.590758][   T68] RAX: 00000000ffffffa6 RBX: ff11000008f1f540 RCX: 1ff4000000092ed5
[   60.590940][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f1f5fc
[   60.591117][   T68] RBP: ff11000005111000 R08: 1fe22000011e3ec1 R09: ff11000008e42ed0
[   60.591293][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   60.591472][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   60.591656][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   60.591890][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.592040][   T68] CR2: 00007f332438dac8 CR3: 000000004d34d003 CR4: 0000000000771ef0
[   60.592217][   T68] PKRU: 55555554
[   60.592305][   T68] Call Trace:
[   60.592394][   T68]  <TASK>
[   60.592460][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   60.592619][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   60.592770][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   60.592897][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   60.593017][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   60.593137][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   60.593255][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   60.593377][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   60.593500][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   60.593622][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   60.593741][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   60.593866][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   60.593983][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   60.594103][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   60.594221][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   60.594342][   T68]  process_one_work (kernel/workqueue.c:3314)
[   60.594467][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   60.594589][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   60.594712][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   60.594831][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   60.594955][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   60.595073][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   60.595194][   T68]  kthread (kernel/kthread.c:436)
[   60.595285][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   60.595435][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   60.595553][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   60.595677][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   60.595825][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   60.595948][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   60.596070][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   60.600525][  T401] ------------[ cut here ]------------
| [   60.600689][  T401] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/401
| [   60.600930][  T401] Modules linked in: unix_diag
| [   60.601331][  T401] Tainted: [W]=WARN
[   60.601433][  T401] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.601599][  T401] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   60.601768][  T401] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   60.602239][  T401] RSP: 0018:ffa0000000d57a80 EFLAGS: 00010286
[   60.602403][  T401] RAX: 00000000ffffffa6 RBX: ff11000008f1e200 RCX: 1ff40000001aaf16
[   60.602607][  T401] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f1e2bc
[   60.602808][  T401] RBP: ff1100000a9a1000 R08: 1fe22000011e3c59 R09: ff1100000f118b80
[   60.603007][  T401] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   60.603200][  T401] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a9a1000
[   60.603395][  T401] FS:  00007f30dc13a840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   60.603631][  T401] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.603795][  T401] CR2: 00007f30dc33bc20 CR3: 000000000f63d004 CR4: 0000000000771ef0
[   60.603997][  T401] PKRU: 55555554
[   60.604095][  T401] Call Trace:
[   60.604193][  T401]  <TASK>
[   60.604260][  T401]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   60.604392][  T401]  ? notifier_call_chain (kernel/notifier.c:85)
[   60.604529][  T401]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   60.604632][  T401]  register_netdevice (net/core/dev.c:11488)
[   60.604765][  T401]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   60.604935][  T401]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   60.605069][  T401]  register_netdev (net/core/dev.c:11552)
[   60.605200][  T401]  loopback_net_init (drivers/net/loopback.c:218)
[   60.605332][  T401]  ops_init (net/core/net_namespace.c:137)
[   60.605437][  T401]  setup_net (net/core/net_namespace.c:446)
[   60.605536][  T401]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   60.605727][  T401]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   60.605861][  T401]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   60.605993][  T401]  copy_net_ns (net/core/net_namespace.c:579)
[   60.606124][  T401]  create_new_namespaces (kernel/nsproxy.c:132)
[   60.606258][  T401]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   60.606390][  T401]  ksys_unshare (kernel/fork.c:3243)
[   60.606525][  T401]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   60.606666][  T401]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   60.606797][  T401]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   60.606935][  T401]  ? __ia32_sys_open (fs/open.c:1374)
[   60.607069][  T401]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   60.607199][  T401]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   60.607334][  T401]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   60.607468][  T401]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   60.607604][  T401]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   60.607740][  T401]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   60.607908][  T401] RIP: 0033:0x7f30dc3fcbcb
[   60.608045][  T401] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   60.608517][  T401] RSP: 002b:00007ffc6c1d99c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   60.608719][  T401] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f30dc3fcbcb
[   60.608928][  T401] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   60.609124][  T401] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   60.609320][  T401] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc6c1dbbf0
[   60.609516][  T401] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc6c1dd886
| [   60.617706][  T401] ------------[ cut here ]------------
| [   60.617842][  T401] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/401
| [   60.618067][  T401] Modules linked in: unix_diag
| [   60.618465][  T401] Tainted: [W]=WARN
[   60.618563][  T401] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.618732][  T401] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   60.618904][  T401] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   60.619367][  T401] RSP: 0018:ffa0000000d57918 EFLAGS: 00010286
[   60.619533][  T401] RAX: 00000000ffffffa6 RBX: ff1100000cb91000 RCX: 1ff40000001aaee9
[   60.619735][  T401] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cb910bc
[   60.619934][  T401] RBP: ff11000005239000 R08: 1fe2200001972219 R09: ff1100000f118b80
[   60.620129][  T401] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   60.620325][  T401] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005239000
[   60.620520][  T401] FS:  00007f30dc13a840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   60.620753][  T401] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.620925][  T401] CR2: 00007f30dc33bc20 CR3: 000000000f63d004 CR4: 0000000000771ef0
[   60.621123][  T401] PKRU: 55555554
[   60.621221][  T401] Call Trace:
[   60.621319][  T401]  <TASK>
[   60.621386][  T401]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   60.621517][  T401]  ? notifier_call_chain (kernel/notifier.c:85)
[   60.621653][  T401]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   60.621754][  T401]  register_netdevice (net/core/dev.c:11488)
[   60.621892][  T401]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   60.622054][  T401]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   60.622186][  T401]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   60.622315][  T401]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   60.622449][  T401]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   60.622587][  T401]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   60.622718][  T401]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   60.622857][  T401]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   60.622992][  T401]  ops_init (net/core/net_namespace.c:137)
[   60.623092][  T401]  setup_net (net/core/net_namespace.c:446)
[   60.623192][  T401]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   60.623321][  T401]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   60.623452][  T401]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   60.623592][  T401]  copy_net_ns (net/core/net_namespace.c:579)
[   60.623724][  T401]  create_new_namespaces (kernel/nsproxy.c:132)
[   60.623875][  T401]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   60.624014][  T401]  ksys_unshare (kernel/fork.c:3243)
[   60.624143][  T401]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   60.624272][  T401]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   60.624401][  T401]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   60.624534][  T401]  ? __ia32_sys_open (fs/open.c:1374)
[   60.624671][  T401]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   60.624801][  T401]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   60.624936][  T401]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   60.625066][  T401]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   60.625195][  T401]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   60.625324][  T401]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   60.625484][  T401] RIP: 0033:0x7f30dc3fcbcb
[   60.625625][  T401] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   60.626093][  T401] RSP: 002b:00007ffc6c1d99c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   60.626288][  T401] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f30dc3fcbcb
[   60.626484][  T401] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   60.626685][  T401] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   60.626882][  T401] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc6c1dbbf0
[   60.627076][  T401] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc6c1dd886
| [   60.631809][  T401] ------------[ cut here ]------------
| [   60.631948][  T401] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/401
| [   60.632175][  T401] Modules linked in: unix_diag
| [   60.632588][  T401] Tainted: [W]=WARN
[   60.632688][  T401] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.632857][  T401] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   60.633029][  T401] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   60.633508][  T401] RSP: 0018:ffa0000000d578f8 EFLAGS: 00010286
[   60.633677][  T401] RAX: 00000000ffffffa6 RBX: ff11000010e09700 RCX: 1ff40000001aaee5
[   60.633880][  T401] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000010e097bc
[   60.634075][  T401] RBP: ff110000084bc000 R08: 1fe22000021c12f9 R09: ff1100000f118b80
[   60.634270][  T401] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   60.634472][  T401] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000084bc000
[   60.634674][  T401] FS:  00007f30dc13a840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   60.634908][  T401] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.635072][  T401] CR2: 00007f30dc33bc20 CR3: 000000000f63d004 CR4: 0000000000771ef0
[   60.635272][  T401] PKRU: 55555554
[   60.635370][  T401] Call Trace:
[   60.635472][  T401]  <TASK>
[   60.635540][  T401]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   60.635677][  T401]  ? notifier_call_chain (kernel/notifier.c:85)
[   60.635807][  T401]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   60.635914][  T401]  register_netdevice (net/core/dev.c:11488)
[   60.636047][  T401]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   60.636212][  T401]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   60.636347][  T401]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   60.636483][  T401]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   60.636621][  T401]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   60.636753][  T401]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   60.636891][  T401]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   60.637023][  T401]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   60.637155][  T401]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   60.637289][  T401]  vti_init_net (net/ipv4/ip_vti.c:517)
[   60.637422][  T401]  ops_init (net/core/net_namespace.c:137)
[   60.637523][  T401]  setup_net (net/core/net_namespace.c:446)
[   60.637628][  T401]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   60.637759][  T401]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   60.637894][  T401]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   60.638032][  T401]  copy_net_ns (net/core/net_namespace.c:579)
[   60.638165][  T401]  create_new_namespaces (kernel/nsproxy.c:132)
[   60.638299][  T401]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   60.638434][  T401]  ksys_unshare (kernel/fork.c:3243)
[   60.638565][  T401]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   60.638755][  T401]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   60.638890][  T401]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   60.639024][  T401]  ? __ia32_sys_open (fs/open.c:1374)
[   60.639157][  T401]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   60.639287][  T401]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   60.639420][  T401]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   60.639552][  T401]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   60.639740][  T401]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   60.639878][  T401]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   60.640039][  T401] RIP: 0033:0x7f30dc3fcbcb
[   60.640177][  T401] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   60.640701][  T401] RSP: 002b:00007ffc6c1d99c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   60.640957][  T401] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f30dc3fcbcb
[   60.641153][  T401] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   60.641349][  T401] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   60.641547][  T401] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc6c1dbbf0
[   60.641798][  T401] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc6c1dd886
| [   60.646317][  T401] ------------[ cut here ]------------
| [   60.646465][  T401] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/401
| [   60.646706][  T401] Modules linked in: unix_diag
| [   60.647114][  T401] Tainted: [W]=WARN
[   60.647214][  T401] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.647377][  T401] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   60.647551][  T401] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   60.648029][  T401] RSP: 0018:ffa0000000d57a78 EFLAGS: 00010286
[   60.648193][  T401] RAX: 00000000ffffffa6 RBX: ff1100000cb36ac0 RCX: 1ff40000001aaf15
[   60.648385][  T401] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cb36b7c
[   60.648588][  T401] RBP: ff1100000a854000 R08: 1fe2200001966d71 R09: ff1100000f118b80
[   60.648782][  T401] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   60.648986][  T401] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a854000
[   60.649181][  T401] FS:  00007f30dc13a840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   60.649414][  T401] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.649577][  T401] CR2: 00005578f1bb6d5c CR3: 000000000f63d006 CR4: 0000000000771ef0
[   60.649777][  T401] PKRU: 55555554
[   60.649880][  T401] Call Trace:
[   60.649976][  T401]  <TASK>
[   60.650044][  T401]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   60.650173][  T401]  ? notifier_call_chain (kernel/notifier.c:85)
[   60.650303][  T401]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   60.650401][  T401]  register_netdevice (net/core/dev.c:11488)
[   60.650537][  T401]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   60.650704][  T401]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   60.650839][  T401]  register_netdev (net/core/dev.c:11552)
[   60.650971][  T401]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   60.651102][  T401]  ops_init (net/core/net_namespace.c:137)
[   60.651202][  T401]  setup_net (net/core/net_namespace.c:446)
[   60.651300][  T401]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   60.651431][  T401]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   60.651560][  T401]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   60.651694][  T401]  copy_net_ns (net/core/net_namespace.c:579)
[   60.651827][  T401]  create_new_namespaces (kernel/nsproxy.c:132)
[   60.651965][  T401]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   60.652095][  T401]  ksys_unshare (kernel/fork.c:3243)
[   60.652224][  T401]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   60.652354][  T401]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   60.652485][  T401]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   60.652622][  T401]  ? __ia32_sys_open (fs/open.c:1374)
[   60.652752][  T401]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   60.652886][  T401]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   60.653015][  T401]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   60.653144][  T401]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   60.653272][  T401]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   60.653400][  T401]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   60.653563][  T401] RIP: 0033:0x7f30dc3fcbcb
[   60.653704][  T401] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   60.654170][  T401] RSP: 002b:00007ffc6c1d99c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   60.654364][  T401] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f30dc3fcbcb
[   60.654560][  T401] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   60.654757][  T401] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   60.654958][  T401] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc6c1dbbf0
[   60.655152][  T401] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc6c1dd886
| [   60.659252][  T401] ------------[ cut here ]------------
| [   60.659382][  T401] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/401
| [   60.659611][  T401] Modules linked in: unix_diag
| [   60.660011][  T401] Tainted: [W]=WARN
[   60.660110][  T401] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.660271][  T401] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   60.660441][  T401] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   60.660912][  T401] RSP: 0018:ffa0000000d57a68 EFLAGS: 00010286
[   60.661074][  T401] RAX: 00000000ffffffa6 RBX: ff1100000a2ee3c0 RCX: 1ff40000001aaf13
[   60.661266][  T401] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2ee47c
[   60.661461][  T401] RBP: ff110000086c1000 R08: 1fe220000145dc91 R09: ff1100000f118b80
[   60.661658][  T401] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   60.661860][  T401] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000086c1000
[   60.662056][  T401] FS:  00007f30dc13a840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   60.662282][  T401] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.662446][  T401] CR2: 00005578f1bb6d5c CR3: 000000000f63d006 CR4: 0000000000771ef0
[   60.662647][  T401] PKRU: 55555554
[   60.662744][  T401] Call Trace:
[   60.662845][  T401]  <TASK>
[   60.662913][  T401]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   60.663042][  T401]  ? notifier_call_chain (kernel/notifier.c:85)
[   60.663173][  T401]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   60.663272][  T401]  register_netdevice (net/core/dev.c:11488)
[   60.663404][  T401]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   60.663572][  T401]  register_netdev (net/core/dev.c:11552)
[   60.663707][  T401]  sit_init_net (net/ipv6/sit.c:1860)
[   60.663844][  T401]  ops_init (net/core/net_namespace.c:137)
[   60.663944][  T401]  setup_net (net/core/net_namespace.c:446)
[   60.664043][  T401]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   60.664172][  T401]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   60.664301][  T401]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   60.664436][  T401]  copy_net_ns (net/core/net_namespace.c:579)
[   60.664568][  T401]  create_new_namespaces (kernel/nsproxy.c:132)
[   60.664706][  T401]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   60.664840][  T401]  ksys_unshare (kernel/fork.c:3243)
[   60.664973][  T401]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   60.665102][  T401]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   60.665233][  T401]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   60.665365][  T401]  ? __ia32_sys_open (fs/open.c:1374)
[   60.665502][  T401]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   60.665636][  T401]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   60.665765][  T401]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   60.665898][  T401]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   60.666028][  T401]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   60.666157][  T401]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   60.666318][  T401] RIP: 0033:0x7f30dc3fcbcb
[   60.666456][  T401] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   60.666929][  T401] RSP: 002b:00007ffc6c1d99c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   60.667128][  T401] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f30dc3fcbcb
[   60.667323][  T401] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   60.667517][  T401] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   60.667714][  T401] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc6c1dbbf0
[   60.667913][  T401] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc6c1dd886
| [   60.678613][  T401] ------------[ cut here ]------------
| [   60.678749][  T401] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/401
| [   60.678979][  T401] Modules linked in: unix_diag
| [   60.679373][  T401] Tainted: [W]=WARN
[   60.679476][  T401] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.679643][  T401] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   60.679810][  T401] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   60.680277][  T401] RSP: 0018:ffa0000000d57a78 EFLAGS: 00010286
[   60.680445][  T401] RAX: 00000000ffffffa6 RBX: ff1100000bbcd540 RCX: 1ff40000001aaf15
[   60.680643][  T401] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bbcd5fc
[   60.680844][  T401] RBP: ff11000008c41000 R08: 1fe2200001779ac1 R09: ff1100000f118b80
[   60.681040][  T401] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   60.681234][  T401] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c41000
[   60.681433][  T401] FS:  00007f30dc13a840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   60.681666][  T401] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.681829][  T401] CR2: 00005578f1bb6d5c CR3: 000000000f63d006 CR4: 0000000000771ef0
[   60.682032][  T401] PKRU: 55555554
[   60.682129][  T401] Call Trace:
[   60.682226][  T401]  <TASK>
[   60.682294][  T401]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   60.682427][  T401]  ? notifier_call_chain (kernel/notifier.c:85)
[   60.682561][  T401]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   60.682664][  T401]  register_netdevice (net/core/dev.c:11488)
[   60.682795][  T401]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   60.682967][  T401]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   60.683101][  T401]  register_netdev (net/core/dev.c:11552)
[   60.683232][  T401]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   60.683364][  T401]  ops_init (net/core/net_namespace.c:137)
[   60.683470][  T401]  setup_net (net/core/net_namespace.c:446)
[   60.683569][  T401]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   60.683746][  T401]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   60.683880][  T401]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   60.684012][  T401]  copy_net_ns (net/core/net_namespace.c:579)
[   60.684145][  T401]  create_new_namespaces (kernel/nsproxy.c:132)
[   60.684278][  T401]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   60.684415][  T401]  ksys_unshare (kernel/fork.c:3243)
[   60.684547][  T401]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   60.684684][  T401]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   60.684815][  T401]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   60.684952][  T401]  ? __ia32_sys_open (fs/open.c:1374)
[   60.685084][  T401]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   60.685214][  T401]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   60.685346][  T401]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   60.685480][  T401]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   60.685616][  T401]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   60.685747][  T401]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   60.685913][  T401] RIP: 0033:0x7f30dc3fcbcb
[   60.686048][  T401] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   60.686522][  T401] RSP: 002b:00007ffc6c1d99c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   60.686724][  T401] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f30dc3fcbcb
[   60.686925][  T401] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   60.687120][  T401] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   60.687319][  T401] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc6c1dbbf0
[   60.687517][  T401] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc6c1dd886
| [   60.711176][  T402] ------------[ cut here ]------------
| [   60.711360][  T402] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/402
| [   60.712263][  T402] Modules linked in: unix_diag
| [   60.712768][  T402] Tainted: [W]=WARN
[   60.712919][  T402] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.713134][  T402] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   60.713352][  T402] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   60.713886][  T402] RSP: 0018:ffa0000000bb7020 EFLAGS: 00010286
[   60.714097][  T402] RAX: 00000000ffffffa6 RBX: ff11000013ba3000 RCX: 1ff4000000176dca
[   60.714338][  T402] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000013ba30bc
[   60.714599][  T402] RBP: ff1100000a9a1000 R08: 1fe2200002774619 R09: ff11000009b52e58
[   60.714845][  T402] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   60.715086][  T402] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   60.715331][  T402] FS:  00007fcead87c840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   60.715626][  T402] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.715845][  T402] CR2: 00000000247a8988 CR3: 0000000004ca6006 CR4: 0000000000771ef0
[   60.716089][  T402] PKRU: 55555554
[   60.716233][  T402] Call Trace:
[   60.716377][  T402]  <TASK>
[   60.716500][  T402]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   60.716692][  T402]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   60.716848][  T402]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   60.717027][  T402]  __dev_notify_flags (net/core/dev.c:9787)
[   60.717208][  T402]  ? netif_change_name (net/core/dev.c:1495)
[   60.717385][  T402]  ? __dev_change_flags (net/core/dev.c:9752)
[   60.717567][  T402]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   60.717759][  T402]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   60.717946][  T402]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   60.718126][  T402]  netif_change_flags (net/core/dev.c:9820)
[   60.718304][  T402]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   60.718512][  T402]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   60.718701][  T402]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   60.718884][  T402]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   60.719099][  T402]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   60.719277][  T402]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   60.719461][  T402]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   60.719650][  T402]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   60.719829][  T402]  ? __kernel_text_address (kernel/extable.c:79)
[   60.720015][  T402]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   60.720194][  T402]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   60.720373][  T402]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   60.720558][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   60.720747][  T402]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   60.720931][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   60.721108][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   60.721286][  T402]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   60.721472][  T402]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   60.721664][  T402]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   60.721850][  T402]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   60.722030][  T402]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   60.722211][  T402]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   60.722392][  T402]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   60.722578][  T402]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   60.722767][  T402]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   60.722947][  T402]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   60.723127][  T402]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   60.723303][  T402]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   60.723492][  T402]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   60.723682][  T402]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   60.723867][  T402]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   60.724044][  T402]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   60.724222][  T402]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   60.724399][  T402]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   60.724599][  T402]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   60.724777][  T402]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   60.724961][  T402]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   60.725141][  T402]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   60.725316][  T402]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   60.725501][  T402]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   60.725692][  T402]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   60.725878][  T402]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   60.726067][  T402]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   60.726243][  T402]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   60.726426][  T402]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   60.726619][  T402]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   60.726796][  T402]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   60.726984][  T402]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   60.727164][  T402]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   60.727345][  T402]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   60.727531][  T402]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   60.727724][  T402]  ? copy_msghdr_from_user (net/socket.c:2635)
[   60.727910][  T402]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   60.728118][  T402]  ? move_addr_to_kernel (net/socket.c:258)
[   60.728296][  T402]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   60.728482][  T402]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   60.728678][  T402]  ___sys_sendmsg (net/socket.c:2752)
[   60.728863][  T402]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   60.729071][  T402]  ? copy_msghdr_from_user (net/socket.c:2603)
[   60.729261][  T402]  __sys_sendmsg (net/socket.c:2784)
[   60.729469][  T402]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   60.729659][  T402]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   60.729881][  T402]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   60.730066][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   60.730246][  T402]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   60.730425][  T402]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   60.730615][  T402]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   60.730794][  T402]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   60.731011][  T402] RIP: 0033:0x7fceadab608e
[   60.731194][  T402] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   60.731723][  T402] RSP: 002b:00007fffa1da4b30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   60.731973][  T402] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fceadab608e
[   60.732211][  T402] RDX: 0000000000000000 RSI: 00007fffa1da4be0 RDI: 0000000000000005
[   60.732463][  T402] RBP: 00007fffa1da4b40 R08: 0000000000000000 R09: 0000000000000000
[   60.732719][  T402] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d686
[   60.732968][  T402] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffa1da52b0
| [   63.956530][   T68] ------------[ cut here ]------------
| [   63.956754][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   63.957001][   T68] Modules linked in: unix_diag
| [   63.957401][   T68] Tainted: [W]=WARN
[   63.957497][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   63.957695][   T68] Workqueue: netns cleanup_net
[   63.957820][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   63.957981][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   63.958465][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   63.958633][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d4ad700 RCX: 1ff4000000092eed
[   63.958809][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d4ad7bc
[   63.958995][   T68] RBP: ff11000008c41000 R08: 1fe2200001a95af9 R09: ff11000008e42ed0
[   63.959227][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   63.959425][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   63.959618][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   63.959828][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   63.959983][   T68] CR2: 00007fd0ede7c2a0 CR3: 000000000a378002 CR4: 0000000000771ef0
[   63.960167][   T68] PKRU: 55555554
[   63.960256][   T68] Call Trace:
[   63.960345][   T68]  <TASK>
[   63.960412][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   63.960568][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   63.960722][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   63.960848][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   63.960972][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   63.961092][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   63.961211][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   63.961332][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   63.961453][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   63.961570][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   63.961700][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   63.961818][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   63.961941][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   63.962060][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   63.962178][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   63.962301][   T68]  process_one_work (kernel/workqueue.c:3314)
[   63.962423][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   63.962541][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   63.962680][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   63.962804][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   63.962934][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   63.963057][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   63.963175][   T68]  kthread (kernel/kthread.c:436)
[   63.963264][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   63.963417][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   63.963535][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   63.963662][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   63.963810][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   63.963941][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   63.964059][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   63.966994][   T68] ------------[ cut here ]------------
| [   63.967130][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   63.967368][   T68] Modules linked in: unix_diag
| [   63.967794][   T68] Tainted: [W]=WARN
[   63.967897][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   63.968083][   T68] Workqueue: netns cleanup_net
[   63.968214][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   63.968380][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   63.968828][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   63.968995][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d4ade00 RCX: 1ff4000000092eed
[   63.969192][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d4adebc
[   63.969369][   T68] RBP: ff110000086c1000 R08: 1fe2200001a95bd9 R09: ff11000008e42ed0
[   63.969554][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   63.969741][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   63.969978][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   63.970206][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   63.970360][   T68] CR2: 00007fd0ede7c2a0 CR3: 000000000a378002 CR4: 0000000000771ef0
[   63.970544][   T68] PKRU: 55555554
[   63.970646][   T68] Call Trace:
[   63.970734][   T68]  <TASK>
[   63.970797][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   63.970962][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   63.971109][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   63.971228][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   63.971347][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   63.971472][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   63.971598][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   63.971719][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   63.971840][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   63.971966][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   63.972092][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   63.972210][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   63.972327][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   63.972450][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   63.972570][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   63.972697][   T68]  process_one_work (kernel/workqueue.c:3314)
[   63.972820][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   63.972941][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   63.973066][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   63.973185][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   63.973301][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   63.973423][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   63.973539][   T68]  kthread (kernel/kthread.c:436)
[   63.973636][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   63.973783][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   63.973904][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   63.974030][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   63.974180][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   63.974298][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   63.974419][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   63.976990][   T68] ------------[ cut here ]------------
| [   63.977161][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   63.977446][   T68] Modules linked in: unix_diag
| [   63.977978][   T68] Tainted: [W]=WARN
[   63.978115][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   63.978310][   T68] Workqueue: netns cleanup_net
[   63.978487][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   63.978714][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   63.979185][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   63.979381][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c0ca040 RCX: 1ff4000000092eed
[   63.979622][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c0ca0fc
[   63.979860][   T68] RBP: ff1100000a854000 R08: 1fe2200001819421 R09: ff11000008e42ed0
[   63.980084][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   63.980306][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   63.980539][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   63.980809][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   63.981011][   T68] CR2: 00007fc1979d4000 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   63.981236][   T68] PKRU: 55555554
[   63.981371][   T68] Call Trace:
[   63.981514][   T68]  <TASK>
[   63.981638][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   63.981838][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   63.982041][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   63.982208][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   63.982375][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   63.982546][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   63.982725][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   63.982903][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   63.983072][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   63.983236][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   63.983407][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   63.983593][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   63.983756][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   63.983934][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   63.984099][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   63.984267][   T68]  process_one_work (kernel/workqueue.c:3314)
[   63.984441][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   63.984620][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   63.984790][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   63.984968][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   63.985138][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   63.985305][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   63.985479][   T68]  kthread (kernel/kthread.c:436)
[   63.985629][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   63.985827][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   63.986004][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   63.986172][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   63.986369][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   63.986542][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   63.986727][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   63.989151][   T68] ------------[ cut here ]------------
| [   63.989311][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   63.989612][   T68] Modules linked in: unix_diag
| [   63.990100][   T68] Tainted: [W]=WARN
[   63.990235][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   63.990431][   T68] Workqueue: netns cleanup_net
[   63.990616][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   63.990815][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   63.991286][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   63.991488][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c698200 RCX: 1ff4000000092eed
[   63.991721][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c6982bc
[   63.991946][   T68] RBP: ff110000084bc000 R08: 1fe22000018d3059 R09: ff11000008e42ed0
[   63.992166][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   63.992388][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   63.992629][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   63.992889][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   63.993086][   T68] CR2: 00007fc1979d4000 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   63.993316][   T68] PKRU: 55555554
[   63.993483][   T68] Call Trace:
[   63.993632][   T68]  <TASK>
[   63.993741][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   63.993951][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   63.994151][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   63.994316][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   63.994491][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   63.994672][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   63.994842][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   63.995021][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   63.995191][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   63.995355][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   63.995530][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   63.995710][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   63.995881][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   63.996048][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   63.996211][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   63.996378][   T68]  process_one_work (kernel/workqueue.c:3314)
[   63.996552][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   63.996728][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   63.996909][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   63.997079][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   63.997245][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   63.997415][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   63.997598][   T68]  kthread (kernel/kthread.c:436)
[   63.997765][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   63.997970][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   63.998137][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   63.998303][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   63.998535][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   63.998713][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   63.998888][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   64.001254][   T68] ------------[ cut here ]------------
| [   64.001414][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   64.001707][   T68] Modules linked in: unix_diag
| [   64.002190][   T68] Tainted: [W]=WARN
[   64.002324][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.002526][   T68] Workqueue: netns cleanup_net
[   64.002709][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   64.002915][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   64.003374][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   64.003576][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c6998c0 RCX: 1ff4000000092eed
[   64.003809][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c69997c
[   64.004034][   T68] RBP: ff11000005239000 R08: 1fe22000018d3331 R09: ff11000008e42ed0
[   64.004252][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   64.004483][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   64.004718][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   64.004976][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.005168][   T68] CR2: 00007fc1979d4000 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   64.005389][   T68] PKRU: 55555554
[   64.005530][   T68] Call Trace:
[   64.005678][   T68]  <TASK>
[   64.005784][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   64.005994][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   64.006186][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   64.006351][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   64.006523][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   64.006699][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   64.006873][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   64.007041][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   64.007208][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   64.007370][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   64.007574][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   64.007751][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   64.007920][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   64.008091][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   64.008253][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   64.008453][   T68]  process_one_work (kernel/workqueue.c:3314)
[   64.008635][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   64.008799][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   64.008977][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   64.009144][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   64.009312][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   64.009489][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   64.009662][   T68]  kthread (kernel/kthread.c:436)
[   64.009798][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   64.010001][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   64.010196][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   64.010466][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   64.010679][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   64.010842][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   64.011089][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   64.033167][  T418] ------------[ cut here ]------------
| [   64.033348][  T418] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/418
| [   64.033654][  T418] Modules linked in: unix_diag
| [   64.034171][  T418] Tainted: [W]=WARN
[   64.034317][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.034534][  T418] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   64.034765][  T418] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   64.035287][  T418] RSP: 0018:ffa0000000d27a80 EFLAGS: 00010286
[   64.035508][  T418] RAX: 00000000ffffffa6 RBX: ff1100000cba3700 RCX: 1ff40000001a4f16
[   64.035760][  T418] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cba37bc
[   64.036010][  T418] RBP: ff11000001dec000 R08: 1fe22000019746f9 R09: ff1100000ea10b80
[   64.036255][  T418] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   64.036504][  T418] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000001dec000
[   64.036765][  T418] FS:  00007f78daba2840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   64.037051][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.037263][  T418] CR2: 00007fc1979d4000 CR3: 0000000004b44002 CR4: 0000000000771ef0
[   64.037519][  T418] PKRU: 55555554
[   64.037676][  T418] Call Trace:
[   64.037821][  T418]  <TASK>
[   64.037944][  T418]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   64.038125][  T418]  ? notifier_call_chain (kernel/notifier.c:85)
[   64.038304][  T418]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   64.038457][  T418]  register_netdevice (net/core/dev.c:11488)
[   64.038652][  T418]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   64.038868][  T418]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   64.039049][  T418]  register_netdev (net/core/dev.c:11552)
[   64.039228][  T418]  loopback_net_init (drivers/net/loopback.c:218)
[   64.039412][  T418]  ops_init (net/core/net_namespace.c:137)
[   64.039565][  T418]  setup_net (net/core/net_namespace.c:446)
[   64.039724][  T418]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   64.039913][  T418]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   64.040095][  T418]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   64.040275][  T418]  copy_net_ns (net/core/net_namespace.c:579)
[   64.040459][  T418]  create_new_namespaces (kernel/nsproxy.c:132)
[   64.040654][  T418]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   64.040833][  T418]  ksys_unshare (kernel/fork.c:3243)
[   64.041019][  T418]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   64.041201][  T418]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   64.041378][  T418]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   64.041563][  T418]  ? __ia32_sys_open (fs/open.c:1374)
[   64.041756][  T418]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   64.041946][  T418]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   64.042126][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   64.042306][  T418]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   64.042490][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   64.042687][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.042904][  T418] RIP: 0033:0x7f78dae64bcb
[   64.043089][  T418] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   64.043616][  T418] RSP: 002b:00007fff258ac0f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   64.043868][  T418] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f78dae64bcb
[   64.044108][  T418] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   64.044348][  T418] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   64.044606][  T418] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff258ae320
[   64.044856][  T418] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff258af886
| [   64.046815][   T68] ------------[ cut here ]------------
| [   64.046954][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   64.047196][   T68] Modules linked in: unix_diag
| [   64.047613][   T68] Tainted: [W]=WARN
[   64.047706][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.047867][   T68] Workqueue: netns cleanup_net
[   64.047999][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   64.048158][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   64.049084][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   64.049240][   T68] RAX: 00000000ffffffa6 RBX: ff1100000fb33e00 RCX: 1ff4000000092eaf
[   64.049425][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fb33ebc
[   64.049645][   T68] RBP: ff1100000a9a1000 R08: 1fe2200001f667d9 R09: ff11000008e42ed0
[   64.049826][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   64.050015][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   64.050197][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   64.050412][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.050567][   T68] CR2: 00007f78dada9430 CR3: 0000000004b44001 CR4: 0000000000771ef0
[   64.050756][   T68] PKRU: 55555554
[   64.050853][   T68] Call Trace:
[   64.050945][   T68]  <TASK>
[   64.051010][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   64.051135][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   64.051235][   T68]  netif_close_many (net/core/dev.c:1804)
[   64.051357][   T68]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   64.051481][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   64.051609][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   64.051763][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   64.051922][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   64.052044][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   64.052167][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   64.052289][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   64.052448][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   64.052574][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   64.052706][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   64.052829][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   64.052957][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   64.053081][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   64.053205][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   64.053327][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   64.053453][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   64.053576][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   64.053705][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   64.053829][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   64.053957][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   64.054081][   T68]  process_one_work (kernel/workqueue.c:3314)
[   64.054207][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   64.054330][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   64.054458][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   64.054589][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   64.054711][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   64.054835][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   64.054961][   T68]  kthread (kernel/kthread.c:436)
[   64.055055][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   64.055207][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   64.055330][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   64.055452][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   64.055612][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   64.055735][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   64.055868][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   64.058007][   T68] ------------[ cut here ]------------
| [   64.058125][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   64.058355][   T68] Modules linked in: unix_diag
| [   64.059194][   T68] Tainted: [W]=WARN
[   64.059287][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.059438][   T68] Workqueue: netns cleanup_net
[   64.059561][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   64.059763][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   64.060196][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   64.060344][   T68] RAX: 00000000ffffffa6 RBX: ff1100000ce383c0 RCX: 1ff4000000092ed5
[   64.060530][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce3847c
[   64.060752][   T68] RBP: ff1100000a9a1000 R08: 1fe22000019c7091 R09: ff11000008e42ed0
[   64.060932][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   64.061111][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   64.061288][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   64.061496][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.061689][   T68] CR2: 00007f78dada9430 CR3: 0000000004b44001 CR4: 0000000000771ef0
[   64.061874][   T68] PKRU: 55555554
[   64.061964][   T68] Call Trace:
[   64.062053][   T68]  <TASK>
[   64.062115][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   64.062264][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   64.062416][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   64.062535][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   64.062710][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   64.062829][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   64.062952][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   64.063071][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   64.063191][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   64.063308][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   64.063431][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   64.063549][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   64.063714][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   64.063833][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   64.063964][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   64.064082][   T68]  process_one_work (kernel/workqueue.c:3314)
[   64.064202][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   64.064319][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   64.064443][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   64.064564][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   64.064737][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   64.064860][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   64.064976][   T68]  kthread (kernel/kthread.c:436)
[   64.065063][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   64.065208][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   64.065325][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   64.065445][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   64.065638][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   64.065757][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   64.065880][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   64.070318][  T418] ------------[ cut here ]------------
| [   64.070495][  T418] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/418
| [   64.070780][  T418] Modules linked in: unix_diag
| [   64.071275][  T418] Tainted: [W]=WARN
[   64.071423][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.071644][  T418] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   64.071864][  T418] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   64.072363][  T418] RSP: 0018:ffa0000000d27918 EFLAGS: 00010286
[   64.072595][  T418] RAX: 00000000ffffffa6 RBX: ff1100000cba2c80 RCX: 1ff40000001a4ee9
[   64.072830][  T418] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cba2d3c
[   64.073077][  T418] RBP: ff1100000a95c000 R08: 1fe22000019745a9 R09: ff1100000ea10b80
[   64.073315][  T418] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   64.073560][  T418] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a95c000
[   64.073811][  T418] FS:  00007f78daba2840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   64.074086][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.074293][  T418] CR2: 00007fc1979d4000 CR3: 0000000004b44002 CR4: 0000000000771ef0
[   64.074542][  T418] PKRU: 55555554
[   64.074700][  T418] Call Trace:
[   64.074852][  T418]  <TASK>
[   64.074966][  T418]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   64.075142][  T418]  ? notifier_call_chain (kernel/notifier.c:85)
[   64.075317][  T418]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   64.075470][  T418]  register_netdevice (net/core/dev.c:11488)
[   64.075661][  T418]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   64.075875][  T418]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   64.076055][  T418]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   64.076231][  T418]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   64.076406][  T418]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   64.076601][  T418]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   64.076779][  T418]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   64.076966][  T418]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   64.077146][  T418]  ops_init (net/core/net_namespace.c:137)
[   64.077295][  T418]  setup_net (net/core/net_namespace.c:446)
[   64.077444][  T418]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   64.077631][  T418]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   64.077809][  T418]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   64.077991][  T418]  copy_net_ns (net/core/net_namespace.c:579)
[   64.078168][  T418]  create_new_namespaces (kernel/nsproxy.c:132)
[   64.078347][  T418]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   64.078532][  T418]  ksys_unshare (kernel/fork.c:3243)
[   64.078719][  T418]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   64.078902][  T418]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   64.079077][  T418]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   64.079253][  T418]  ? __ia32_sys_open (fs/open.c:1374)
[   64.079433][  T418]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   64.079623][  T418]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   64.079797][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   64.079980][  T418]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   64.080154][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   64.080329][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.080543][  T418] RIP: 0033:0x7f78dae64bcb
[   64.080735][  T418] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   64.081241][  T418] RSP: 002b:00007fff258ac0f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   64.081487][  T418] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f78dae64bcb
[   64.081738][  T418] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   64.081983][  T418] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   64.082222][  T418] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff258ae320
[   64.082465][  T418] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff258af886
| [   64.086666][  T418] ------------[ cut here ]------------
| [   64.086839][  T418] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/418
| [   64.087120][  T418] Modules linked in: unix_diag
| [   64.087626][  T418] Tainted: [W]=WARN
[   64.087774][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.087986][  T418] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   64.088202][  T418] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   64.088730][  T418] RSP: 0018:ffa0000000d278f8 EFLAGS: 00010286
[   64.088950][  T418] RAX: 00000000ffffffa6 RBX: ff110000050a9c40 RCX: 1ff40000001a4ee5
[   64.089189][  T418] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000050a9cfc
[   64.089431][  T418] RBP: ff1100000a83c000 R08: 1fe2200000a153a1 R09: ff1100000ea10b80
[   64.089684][  T418] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   64.089934][  T418] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a83c000
[   64.090176][  T418] FS:  00007f78daba2840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   64.090453][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.090676][  T418] CR2: 00007fc1979d4000 CR3: 0000000004b44002 CR4: 0000000000771ef0
[   64.090925][  T418] PKRU: 55555554
[   64.091069][  T418] Call Trace:
[   64.091211][  T418]  <TASK>
[   64.091325][  T418]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   64.091511][  T418]  ? notifier_call_chain (kernel/notifier.c:85)
[   64.091697][  T418]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   64.091842][  T418]  register_netdevice (net/core/dev.c:11488)
[   64.092029][  T418]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   64.092240][  T418]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   64.092423][  T418]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   64.092613][  T418]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   64.092789][  T418]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   64.092976][  T418]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   64.093154][  T418]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   64.093333][  T418]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   64.093518][  T418]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   64.093712][  T418]  vti_init_net (net/ipv4/ip_vti.c:517)
[   64.093893][  T418]  ops_init (net/core/net_namespace.c:137)
[   64.094040][  T418]  setup_net (net/core/net_namespace.c:446)
[   64.094186][  T418]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   64.094360][  T418]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   64.094545][  T418]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   64.094735][  T418]  copy_net_ns (net/core/net_namespace.c:579)
[   64.094924][  T418]  create_new_namespaces (kernel/nsproxy.c:132)
[   64.095104][  T418]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   64.095281][  T418]  ksys_unshare (kernel/fork.c:3243)
[   64.095462][  T418]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   64.095652][  T418]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   64.095830][  T418]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   64.096014][  T418]  ? __ia32_sys_open (fs/open.c:1374)
[   64.096194][  T418]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   64.096369][  T418]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   64.096550][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   64.096736][  T418]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   64.096919][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   64.097098][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.097301][  T418] RIP: 0033:0x7f78dae64bcb
[   64.097489][  T418] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   64.098013][  T418] RSP: 002b:00007fff258ac0f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   64.098254][  T418] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f78dae64bcb
[   64.098498][  T418] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   64.098752][  T418] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   64.098999][  T418] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff258ae320
[   64.099236][  T418] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff258af886
| [   64.103680][  T418] ------------[ cut here ]------------
| [   64.103856][  T418] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/418
| [   64.104123][  T418] Modules linked in: unix_diag
| [   64.104624][  T418] Tainted: [W]=WARN
[   64.104766][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.104979][  T418] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   64.105192][  T418] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   64.105709][  T418] RSP: 0018:ffa0000000d27a78 EFLAGS: 00010286
[   64.105922][  T418] RAX: 00000000ffffffa6 RBX: ff1100000c0ca740 RCX: 1ff40000001a4f15
[   64.106156][  T418] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c0ca7fc
[   64.106392][  T418] RBP: ff11000008c39000 R08: 1fe2200001819501 R09: ff1100000ea10b80
[   64.106644][  T418] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   64.106888][  T418] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c39000
[   64.107127][  T418] FS:  00007f78daba2840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   64.107396][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.107624][  T418] CR2: 00007fc1979d4000 CR3: 0000000004b44002 CR4: 0000000000771ef0
[   64.107869][  T418] PKRU: 55555554
[   64.108009][  T418] Call Trace:
[   64.108150][  T418]  <TASK>
[   64.108261][  T418]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   64.108438][  T418]  ? notifier_call_chain (kernel/notifier.c:85)
[   64.108625][  T418]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   64.108771][  T418]  register_netdevice (net/core/dev.c:11488)
[   64.108953][  T418]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   64.109155][  T418]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   64.109332][  T418]  register_netdev (net/core/dev.c:11552)
[   64.109515][  T418]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   64.109702][  T418]  ops_init (net/core/net_namespace.c:137)
[   64.109853][  T418]  setup_net (net/core/net_namespace.c:446)
[   64.110002][  T418]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   64.110174][  T418]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   64.110348][  T418]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   64.110529][  T418]  copy_net_ns (net/core/net_namespace.c:579)
[   64.110715][  T418]  create_new_namespaces (kernel/nsproxy.c:132)
[   64.110895][  T418]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   64.111069][  T418]  ksys_unshare (kernel/fork.c:3243)
[   64.111248][  T418]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   64.111422][  T418]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   64.111608][  T418]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   64.111782][  T418]  ? __ia32_sys_open (fs/open.c:1374)
[   64.111968][  T418]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   64.112147][  T418]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   64.112318][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   64.112502][  T418]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   64.112688][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   64.112869][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.113075][  T418] RIP: 0033:0x7f78dae64bcb
[   64.113254][  T418] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   64.113771][  T418] RSP: 002b:00007fff258ac0f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   64.114015][  T418] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f78dae64bcb
[   64.114248][  T418] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   64.114488][  T418] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   64.114739][  T418] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff258ae320
[   64.114980][  T418] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff258af886
| [   64.119378][  T418] ------------[ cut here ]------------
| [   64.119552][  T418] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/418
| [   64.119829][  T418] Modules linked in: unix_diag
| [   64.120312][  T418] Tainted: [W]=WARN
[   64.120459][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.120679][  T418] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   64.120897][  T418] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   64.121387][  T418] RSP: 0018:ffa0000000d27a68 EFLAGS: 00010286
[   64.121611][  T418] RAX: 00000000ffffffa6 RBX: ff1100000c0cb540 RCX: 1ff40000001a4f13
[   64.121852][  T418] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c0cb5fc
[   64.122089][  T418] RBP: ff11000006259000 R08: 1fe22000018196c1 R09: ff1100000ea10b80
[   64.122322][  T418] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   64.122562][  T418] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000006259000
[   64.122814][  T418] FS:  00007f78daba2840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   64.123087][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.123292][  T418] CR2: 00007fc1979d4000 CR3: 0000000004b44002 CR4: 0000000000771ef0
[   64.123533][  T418] PKRU: 55555554
[   64.123686][  T418] Call Trace:
[   64.123827][  T418]  <TASK>
[   64.123946][  T418]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   64.124121][  T418]  ? notifier_call_chain (kernel/notifier.c:85)
[   64.124293][  T418]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   64.124438][  T418]  register_netdevice (net/core/dev.c:11488)
[   64.124625][  T418]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   64.124830][  T418]  register_netdev (net/core/dev.c:11552)
[   64.125013][  T418]  sit_init_net (net/ipv6/sit.c:1860)
[   64.125188][  T418]  ops_init (net/core/net_namespace.c:137)
[   64.125331][  T418]  setup_net (net/core/net_namespace.c:446)
[   64.125481][  T418]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   64.125662][  T418]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   64.125834][  T418]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   64.126014][  T418]  copy_net_ns (net/core/net_namespace.c:579)
[   64.126188][  T418]  create_new_namespaces (kernel/nsproxy.c:132)
[   64.126365][  T418]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   64.126546][  T418]  ksys_unshare (kernel/fork.c:3243)
[   64.126728][  T418]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   64.126906][  T418]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   64.127081][  T418]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   64.127254][  T418]  ? __ia32_sys_open (fs/open.c:1374)
[   64.127433][  T418]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   64.127623][  T418]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   64.127796][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   64.127979][  T418]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   64.128149][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   64.128322][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.128531][  T418] RIP: 0033:0x7f78dae64bcb
[   64.128720][  T418] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   64.129220][  T418] RSP: 002b:00007fff258ac0f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   64.129463][  T418] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f78dae64bcb
[   64.129714][  T418] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   64.129953][  T418] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   64.130186][  T418] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff258ae320
[   64.130421][  T418] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff258af886
| [   64.134913][  T418] ------------[ cut here ]------------
| [   64.135082][  T418] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/418
| [   64.135345][  T418] Modules linked in: unix_diag
| [   64.135842][  T418] Tainted: [W]=WARN
[   64.135992][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.136194][  T418] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   64.136404][  T418] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   64.136924][  T418] RSP: 0018:ffa0000000d27a78 EFLAGS: 00010286
[   64.137130][  T418] RAX: 00000000ffffffa6 RBX: ff1100000fb32c80 RCX: 1ff40000001a4f15
[   64.137363][  T418] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fb32d3c
[   64.137615][  T418] RBP: ff11000008b61000 R08: 1fe2200001f665a9 R09: ff1100000ea10b80
[   64.137856][  T418] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   64.138094][  T418] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b61000
[   64.138330][  T418] FS:  00007f78daba2840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   64.138616][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.138822][  T418] CR2: 00007fc1979d4000 CR3: 0000000004b44002 CR4: 0000000000771ef0
[   64.139067][  T418] PKRU: 55555554
[   64.139206][  T418] Call Trace:
[   64.139345][  T418]  <TASK>
[   64.139461][  T418]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   64.139647][  T418]  ? notifier_call_chain (kernel/notifier.c:85)
[   64.139817][  T418]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   64.139967][  T418]  register_netdevice (net/core/dev.c:11488)
[   64.140143][  T418]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   64.140343][  T418]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   64.140523][  T418]  register_netdev (net/core/dev.c:11552)
[   64.140708][  T418]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   64.140888][  T418]  ops_init (net/core/net_namespace.c:137)
[   64.141033][  T418]  setup_net (net/core/net_namespace.c:446)
[   64.141174][  T418]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   64.141347][  T418]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   64.141523][  T418]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   64.141708][  T418]  copy_net_ns (net/core/net_namespace.c:579)
[   64.141891][  T418]  create_new_namespaces (kernel/nsproxy.c:132)
[   64.142066][  T418]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   64.142237][  T418]  ksys_unshare (kernel/fork.c:3243)
[   64.142409][  T418]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   64.142600][  T418]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   64.142771][  T418]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   64.142952][  T418]  ? __ia32_sys_open (fs/open.c:1374)
[   64.143124][  T418]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   64.143294][  T418]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   64.143470][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   64.143654][  T418]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   64.143828][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   64.144008][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.144207][  T418] RIP: 0033:0x7f78dae64bcb
[   64.144381][  T418] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   64.144888][  T418] RSP: 002b:00007fff258ac0f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   64.145126][  T418] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f78dae64bcb
[   64.145355][  T418] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   64.145605][  T418] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   64.145837][  T418] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff258ae320
[   64.146080][  T418] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff258af886
| [   64.176499][  T419] ------------[ cut here ]------------
| [   64.177104][  T419] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/419
| [   64.177325][  T419] Modules linked in: unix_diag
| [   64.177722][  T419] Tainted: [W]=WARN
[   64.177816][  T419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.177978][  T419] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   64.178141][  T419] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   64.178596][  T419] RSP: 0018:ffa0000000e37020 EFLAGS: 00010286
[   64.178752][  T419] RAX: 00000000ffffffa6 RBX: ff1100000ce39380 RCX: 1ff40000001c6dca
[   64.178943][  T419] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce3943c
[   64.179129][  T419] RBP: ff11000001dec000 R08: 1fe22000019c7289 R09: ff1100000784ae58
[   64.179314][  T419] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   64.179503][  T419] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   64.179702][  T419] FS:  00007f81b4dd9840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   64.179927][  T419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.180082][  T419] CR2: 00000000395c0988 CR3: 000000000f711004 CR4: 0000000000771ef0
[   64.180268][  T419] PKRU: 55555554
[   64.180362][  T419] Call Trace:
[   64.180459][  T419]  <TASK>
[   64.180524][  T419]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   64.180656][  T419]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   64.180753][  T419]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   64.180884][  T419]  __dev_notify_flags (net/core/dev.c:9787)
[   64.181011][  T419]  ? netif_change_name (net/core/dev.c:1495)
[   64.181135][  T419]  ? __dev_change_flags (net/core/dev.c:9752)
[   64.181261][  T419]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   64.181387][  T419]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   64.181513][  T419]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   64.181646][  T419]  netif_change_flags (net/core/dev.c:9820)
[   64.181771][  T419]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   64.181903][  T419]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   64.182032][  T419]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   64.182158][  T419]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   64.182312][  T419]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.182440][  T419]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   64.182566][  T419]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   64.182696][  T419]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   64.182822][  T419]  ? __kernel_text_address (kernel/extable.c:79)
[   64.182952][  T419]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   64.183079][  T419]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   64.183203][  T419]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   64.183329][  T419]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   64.183459][  T419]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   64.183587][  T419]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   64.183712][  T419]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   64.183837][  T419]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   64.183969][  T419]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   64.184093][  T419]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   64.184217][  T419]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   64.184341][  T419]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   64.184474][  T419]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   64.184607][  T419]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   64.184734][  T419]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   64.184860][  T419]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   64.184984][  T419]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   64.185107][  T419]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   64.185230][  T419]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   64.185358][  T419]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   64.185485][  T419]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   64.185752][  T419]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   64.185881][  T419]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   64.186006][  T419]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   64.186132][  T419]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   64.186257][  T419]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   64.186380][  T419]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.186509][  T419]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   64.186693][  T419]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   64.186817][  T419]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   64.186947][  T419]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   64.187072][  T419]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.187196][  T419]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   64.187324][  T419]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   64.187449][  T419]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   64.187577][  T419]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   64.187756][  T419]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   64.187886][  T419]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   64.188012][  T419]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   64.188138][  T419]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   64.188263][  T419]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   64.188390][  T419]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   64.188519][  T419]  ? copy_msghdr_from_user (net/socket.c:2635)
[   64.188652][  T419]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   64.188805][  T419]  ? move_addr_to_kernel (net/socket.c:258)
[   64.188938][  T419]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   64.189065][  T419]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   64.189192][  T419]  ___sys_sendmsg (net/socket.c:2752)
[   64.189319][  T419]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   64.189480][  T419]  ? copy_msghdr_from_user (net/socket.c:2603)
[   64.189624][  T419]  __sys_sendmsg (net/socket.c:2784)
[   64.189751][  T419]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   64.189882][  T419]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   64.190040][  T419]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   64.190165][  T419]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   64.190290][  T419]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   64.190419][  T419]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   64.190547][  T419]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   64.190679][  T419]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.190834][  T419] RIP: 0033:0x7f81b501308e
[   64.190973][  T419] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   64.191421][  T419] RSP: 002b:00007ffd48b07b70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   64.191615][  T419] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f81b501308e
[   64.191802][  T419] RDX: 0000000000000000 RSI: 00007ffd48b07c20 RDI: 0000000000000005
[   64.191994][  T419] RBP: 00007ffd48b07b80 R08: 0000000000000000 R09: 0000000000000000
[   64.192183][  T419] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d689
[   64.192369][  T419] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd48b082f0
| [   67.409241][   T68] ------------[ cut here ]------------
| [   67.409415][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   67.409661][   T68] Modules linked in: unix_diag
| [   67.410062][   T68] Tainted: [W]=WARN
[   67.410152][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.410308][   T68] Workqueue: netns cleanup_net
[   67.410437][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   67.410597][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   67.411046][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   67.411194][   T68] RAX: 00000000ffffffa6 RBX: ff110000050a8ac0 RCX: 1ff4000000092eed
[   67.411368][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000050a8b7c
[   67.411550][   T68] RBP: ff11000008b61000 R08: 1fe2200000a15171 R09: ff11000008e42ed0
[   67.411728][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   67.411911][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   67.412096][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   67.412304][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.412455][   T68] CR2: 00007fe09a1cd2a0 CR3: 000000004d34d003 CR4: 0000000000771ef0
[   67.412641][   T68] PKRU: 55555554
[   67.412730][   T68] Call Trace:
[   67.412822][   T68]  <TASK>
[   67.412894][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   67.413046][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   67.413192][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   67.413313][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   67.413442][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   67.413562][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   67.413684][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   67.413805][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   67.413927][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   67.414043][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   67.414165][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   67.414283][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   67.414401][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   67.414524][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   67.414646][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   67.414768][   T68]  process_one_work (kernel/workqueue.c:3314)
[   67.414895][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   67.415016][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   67.415139][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   67.415259][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   67.415379][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   67.415507][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   67.415633][   T68]  kthread (kernel/kthread.c:436)
[   67.415723][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   67.415876][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   67.415996][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   67.416116][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   67.416264][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   67.416381][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   67.416504][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   67.419084][   T68] ------------[ cut here ]------------
| [   67.419210][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   67.419515][   T68] Modules linked in: unix_diag
| [   67.420229][   T68] Tainted: [W]=WARN
[   67.420317][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.420468][   T68] Workqueue: netns cleanup_net
[   67.420624][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   67.420777][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   67.421200][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   67.421348][   T68] RAX: 00000000ffffffa6 RBX: ff110000050a8c80 RCX: 1ff4000000092eed
[   67.421524][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000050a8d3c
[   67.421775][   T68] RBP: ff11000006259000 R08: 1fe2200000a151a9 R09: ff11000008e42ed0
[   67.421950][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   67.422200][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   67.422376][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   67.422587][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.422816][   T68] CR2: 00007fe09a1cd2a0 CR3: 000000004d34d003 CR4: 0000000000771ef0
[   67.423000][   T68] PKRU: 55555554
[   67.423087][   T68] Call Trace:
[   67.423174][   T68]  <TASK>
[   67.423305][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   67.423459][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   67.423607][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   67.423725][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   67.423922][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   67.424039][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   67.424157][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   67.424276][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   67.424470][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   67.424592][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   67.424715][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   67.424833][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   67.425024][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   67.425148][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   67.425264][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   67.425385][   T68]  process_one_work (kernel/workqueue.c:3314)
[   67.425580][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   67.425708][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   67.425832][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   67.425955][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   67.426073][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   67.426192][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   67.426309][   T68]  kthread (kernel/kthread.c:436)
[   67.426399][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   67.426547][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   67.426670][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   67.426790][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   67.426942][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   67.427058][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   67.427177][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   67.430681][   T68] ------------[ cut here ]------------
| [   67.430824][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   67.431068][   T68] Modules linked in: unix_diag
| [   67.431475][   T68] Tainted: [W]=WARN
[   67.431562][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.431715][   T68] Workqueue: netns cleanup_net
[   67.431836][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   67.431997][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   67.432417][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   67.432563][   T68] RAX: 00000000ffffffa6 RBX: ff1100000ce76ac0 RCX: 1ff4000000092eed
[   67.432751][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce76b7c
[   67.432931][   T68] RBP: ff11000008c39000 R08: 1fe22000019ced71 R09: ff11000008e42ed0
[   67.433105][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   67.433278][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   67.433454][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   67.433669][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.433822][   T68] CR2: 00005591414e3d5c CR3: 0000000004ead004 CR4: 0000000000771ef0
[   67.434005][   T68] PKRU: 55555554
[   67.434093][   T68] Call Trace:
[   67.434181][   T68]  <TASK>
[   67.434244][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   67.434394][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   67.434542][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   67.434666][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   67.434787][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   67.434911][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   67.435031][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   67.435153][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   67.435271][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   67.435391][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   67.435514][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   67.435638][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   67.435753][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   67.435877][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   67.435995][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   67.436119][   T68]  process_one_work (kernel/workqueue.c:3314)
[   67.436240][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   67.436356][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   67.436479][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   67.436604][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   67.436720][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   67.436839][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   67.436972][   T68]  kthread (kernel/kthread.c:436)
[   67.437064][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   67.437210][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   67.437329][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   67.437448][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   67.437597][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   67.437717][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   67.437842][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   67.440310][   T68] ------------[ cut here ]------------
| [   67.440467][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   67.441098][   T68] Modules linked in: unix_diag
| [   67.441565][   T68] Tainted: [W]=WARN
[   67.441666][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.441814][   T68] Workqueue: netns cleanup_net
[   67.441955][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   67.442108][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   67.442535][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   67.442687][   T68] RAX: 00000000ffffffa6 RBX: ff1100000ce76740 RCX: 1ff4000000092eed
[   67.442866][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce767fc
[   67.443054][   T68] RBP: ff1100000a83c000 R08: 1fe22000019ced01 R09: ff11000008e42ed0
[   67.443232][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   67.443406][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   67.443587][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   67.443790][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.443942][   T68] CR2: 00005591414e3d5c CR3: 0000000004ead004 CR4: 0000000000771ef0
[   67.444123][   T68] PKRU: 55555554
[   67.444209][   T68] Call Trace:
[   67.444297][   T68]  <TASK>
[   67.444358][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   67.444512][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   67.444665][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   67.444783][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   67.444907][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   67.445027][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   67.445150][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   67.445272][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   67.445393][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   67.445518][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   67.445646][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   67.445765][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   67.445888][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   67.446006][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   67.446121][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   67.446240][   T68]  process_one_work (kernel/workqueue.c:3314)
[   67.446359][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   67.446476][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   67.446605][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   67.446725][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   67.446841][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   67.446969][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   67.447085][   T68]  kthread (kernel/kthread.c:436)
[   67.447172][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   67.447318][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   67.447440][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   67.447557][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   67.447706][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   67.447826][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   67.447955][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   67.449945][   T68] ------------[ cut here ]------------
| [   67.450062][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   67.450289][   T68] Modules linked in: unix_diag
| [   67.450691][   T68] Tainted: [W]=WARN
[   67.450780][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.450950][   T68] Workqueue: netns cleanup_net
[   67.451073][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   67.451225][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   67.451701][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   67.451880][   T68] RAX: 00000000ffffffa6 RBX: ff1100000ce763c0 RCX: 1ff4000000092eed
[   67.452056][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce7647c
[   67.452236][   T68] RBP: ff1100000a95c000 R08: 1fe22000019cec91 R09: ff11000008e42ed0
[   67.452411][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   67.452600][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   67.452774][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   67.452990][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.453135][   T68] CR2: 00005591414e3d5c CR3: 0000000004ead004 CR4: 0000000000771ef0
[   67.453309][   T68] PKRU: 55555554
[   67.453394][   T68] Call Trace:
[   67.453488][   T68]  <TASK>
[   67.453549][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   67.453705][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   67.453850][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   67.453973][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   67.454090][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   67.454204][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   67.454320][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   67.454444][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   67.454562][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   67.454683][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   67.454801][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   67.454922][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   67.455037][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   67.455156][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   67.455273][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   67.455390][   T68]  process_one_work (kernel/workqueue.c:3314)
[   67.455513][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   67.455636][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   67.455756][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   67.455880][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   67.455998][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   67.456115][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   67.456230][   T68]  kthread (kernel/kthread.c:436)
[   67.456318][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   67.456473][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   67.456594][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   67.456710][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   67.456859][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   67.457048][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   67.457165][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   67.469171][   T68] ------------[ cut here ]------------
| [   67.469315][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   67.469566][   T68] Modules linked in: unix_diag
| [   67.469988][   T68] Tainted: [W]=WARN
[   67.470082][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.470237][   T68] Workqueue: netns cleanup_net
[   67.470365][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   67.470533][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   67.470985][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   67.471141][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b693a80 RCX: 1ff4000000092eaf
[   67.471332][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b693b3c
[   67.471519][   T68] RBP: ff11000001dec000 R08: 1fe22000016d2769 R09: ff11000008e42ed0
[   67.471709][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   67.471897][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   67.472088][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   67.472303][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.472460][   T68] CR2: 00007ffe42d105d8 CR3: 000000000c024005 CR4: 0000000000771ef0
[   67.472659][   T68] PKRU: 55555554
[   67.472752][   T68] Call Trace:
[   67.472844][   T68]  <TASK>
[   67.472914][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   67.473040][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   67.473134][   T68]  netif_close_many (net/core/dev.c:1804)
[   67.473256][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   67.473378][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   67.473504][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   67.473634][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   67.473757][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   67.473920][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   67.474074][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   67.474197][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   67.474318][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   67.474444][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   67.474605][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   67.474731][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   67.474861][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   67.474985][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   67.475107][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   67.475231][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   67.475356][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   67.475479][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   67.475611][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   67.475743][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   67.475880][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   67.476009][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   67.476132][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   67.476257][   T68]  process_one_work (kernel/workqueue.c:3314)
[   67.476382][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   67.476507][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   67.476640][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   67.476767][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   67.476894][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   67.477019][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   67.477143][   T68]  kthread (kernel/kthread.c:436)
[   67.477237][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   67.477390][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   67.477517][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   67.477647][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   67.477801][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   67.477928][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   67.478051][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   67.480484][   T68] ------------[ cut here ]------------
| [   67.481042][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   67.481283][   T68] Modules linked in: unix_diag
| [   67.481781][   T68] Tainted: [W]=WARN
[   67.481883][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.482046][   T68] Workqueue: netns cleanup_net
[   67.482175][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   67.482329][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   67.482769][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   67.482923][   T68] RAX: 00000000ffffffa6 RBX: ff1100000e139540 RCX: 1ff4000000092ed5
[   67.483105][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e1395fc
[   67.483285][   T68] RBP: ff11000001dec000 R08: 1fe2200001c272c1 R09: ff11000008e42ed0
[   67.483467][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   67.483650][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   67.483828][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   67.484039][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.484186][   T68] CR2: 00007ffe42d105d8 CR3: 000000004d34d006 CR4: 0000000000771ef0
[   67.484366][   T68] PKRU: 55555554
[   67.484459][   T68] Call Trace:
[   67.484547][   T68]  <TASK>
[   67.484615][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   67.484772][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   67.484926][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   67.485048][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   67.485174][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   67.485292][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   67.485414][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   67.485538][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   67.485667][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   67.485785][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   67.485915][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   67.486035][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   67.486155][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   67.486275][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   67.486393][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   67.486517][   T68]  process_one_work (kernel/workqueue.c:3314)
[   67.486648][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   67.486767][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   67.486895][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   67.487018][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   67.487136][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   67.487255][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   67.487373][   T68]  kthread (kernel/kthread.c:436)
[   67.487468][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   67.487622][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   67.487742][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   67.487865][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   67.488014][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   67.488134][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   67.488253][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   67.522097][  T435] ------------[ cut here ]------------
| [   67.522285][  T435] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/435
| [   67.522571][  T435] Modules linked in: unix_diag
| [   67.523086][  T435] Tainted: [W]=WARN
[   67.523230][  T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.523443][  T435] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   67.523673][  T435] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   67.524198][  T435] RSP: 0018:ffa0000000e47a80 EFLAGS: 00010286
[   67.524408][  T435] RAX: 00000000ffffffa6 RBX: ff1100000d539540 RCX: 1ff40000001c8f16
[   67.524664][  T435] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d5395fc
[   67.524918][  T435] RBP: ff11000008351000 R08: 1fe2200001aa72c1 R09: ff11000005b28b80
[   67.525184][  T435] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   67.525426][  T435] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008351000
[   67.525684][  T435] FS:  00007f044e49d840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   67.525967][  T435] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.526177][  T435] CR2: 00007f044e69ec20 CR3: 000000000e2de006 CR4: 0000000000771ef0
[   67.526420][  T435] PKRU: 55555554
[   67.526567][  T435] Call Trace:
[   67.526725][  T435]  <TASK>
[   67.526840][  T435]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   67.527032][  T435]  ? notifier_call_chain (kernel/notifier.c:85)
[   67.527212][  T435]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   67.527358][  T435]  register_netdevice (net/core/dev.c:11488)
[   67.527545][  T435]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   67.527766][  T435]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   67.527954][  T435]  register_netdev (net/core/dev.c:11552)
[   67.528132][  T435]  loopback_net_init (drivers/net/loopback.c:218)
[   67.528310][  T435]  ops_init (net/core/net_namespace.c:137)
[   67.528467][  T435]  setup_net (net/core/net_namespace.c:446)
[   67.528626][  T435]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   67.528803][  T435]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   67.528991][  T435]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   67.529170][  T435]  copy_net_ns (net/core/net_namespace.c:579)
[   67.529350][  T435]  create_new_namespaces (kernel/nsproxy.c:132)
[   67.529537][  T435]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   67.529736][  T435]  ksys_unshare (kernel/fork.c:3243)
[   67.529926][  T435]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   67.530105][  T435]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   67.530283][  T435]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   67.530471][  T435]  ? __ia32_sys_open (fs/open.c:1374)
[   67.530664][  T435]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   67.530842][  T435]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   67.531052][  T435]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   67.531230][  T435]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   67.531407][  T435]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   67.531603][  T435]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   67.531812][  T435] RIP: 0033:0x7f044e75fbcb
[   67.532004][  T435] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   67.532520][  T435] RSP: 002b:00007fff385b2698 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   67.532778][  T435] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f044e75fbcb
[   67.533027][  T435] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   67.533265][  T435] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   67.533517][  T435] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff385b48c0
[   67.533770][  T435] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff385b5886
| [   67.538002][  T435] ------------[ cut here ]------------
| [   67.538176][  T435] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/435
| [   67.538450][  T435] Modules linked in: unix_diag
| [   67.538962][  T435] Tainted: [W]=WARN
[   67.539109][  T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.539317][  T435] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   67.539540][  T435] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   67.540066][  T435] RSP: 0018:ffa0000000e47918 EFLAGS: 00010286
[   67.540278][  T435] RAX: 00000000ffffffa6 RBX: ff1100000bebe740 RCX: 1ff40000001c8ee9
[   67.540524][  T435] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bebe7fc
[   67.540776][  T435] RBP: ff11000008b39000 R08: 1fe22000017d7d01 R09: ff11000005b28b80
[   67.541027][  T435] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   67.541288][  T435] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b39000
[   67.541543][  T435] FS:  00007f044e49d840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   67.541830][  T435] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.542046][  T435] CR2: 00007f044e69ec20 CR3: 000000000e2de006 CR4: 0000000000771ef0
[   67.542291][  T435] PKRU: 55555554
[   67.542437][  T435] Call Trace:
[   67.542596][  T435]  <TASK>
[   67.542711][  T435]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   67.542897][  T435]  ? notifier_call_chain (kernel/notifier.c:85)
[   67.543074][  T435]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   67.543220][  T435]  register_netdevice (net/core/dev.c:11488)
[   67.543398][  T435]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   67.543629][  T435]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   67.543810][  T435]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   67.543998][  T435]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   67.544174][  T435]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   67.544354][  T435]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   67.544539][  T435]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   67.544734][  T435]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   67.544925][  T435]  ops_init (net/core/net_namespace.c:137)
[   67.545075][  T435]  setup_net (net/core/net_namespace.c:446)
[   67.545222][  T435]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   67.545395][  T435]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   67.545597][  T435]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   67.545777][  T435]  copy_net_ns (net/core/net_namespace.c:579)
[   67.545964][  T435]  create_new_namespaces (kernel/nsproxy.c:132)
[   67.546149][  T435]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   67.546326][  T435]  ksys_unshare (kernel/fork.c:3243)
[   67.546511][  T435]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   67.546698][  T435]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   67.546881][  T435]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   67.547062][  T435]  ? __ia32_sys_open (fs/open.c:1374)
[   67.547242][  T435]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   67.547424][  T435]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   67.547616][  T435]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   67.547792][  T435]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   67.547979][  T435]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   67.548159][  T435]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   67.548366][  T435] RIP: 0033:0x7f044e75fbcb
[   67.548556][  T435] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   67.549085][  T435] RSP: 002b:00007fff385b2698 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   67.549328][  T435] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f044e75fbcb
[   67.549576][  T435] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   67.549833][  T435] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   67.550083][  T435] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff385b48c0
[   67.550323][  T435] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff385b5886
| [   67.554632][  T435] ------------[ cut here ]------------
| [   67.554802][  T435] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/435
| [   67.555083][  T435] Modules linked in: unix_diag
| [   67.555602][  T435] Tainted: [W]=WARN
[   67.555748][  T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.555965][  T435] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   67.556184][  T435] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   67.556718][  T435] RSP: 0018:ffa0000000e478f8 EFLAGS: 00010286
[   67.556933][  T435] RAX: 00000000ffffffa6 RBX: ff1100000bebe3c0 RCX: 1ff40000001c8ee5
[   67.557174][  T435] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bebe47c
[   67.557420][  T435] RBP: ff1100000a99c000 R08: 1fe22000017d7c91 R09: ff11000005b28b80
[   67.557677][  T435] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   67.557930][  T435] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a99c000
[   67.558174][  T435] FS:  00007f044e49d840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   67.558458][  T435] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.558685][  T435] CR2: 00007f044e69ec20 CR3: 000000000e2de006 CR4: 0000000000771ef0
[   67.558945][  T435] PKRU: 55555554
[   67.559091][  T435] Call Trace:
[   67.559237][  T435]  <TASK>
[   67.559352][  T435]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   67.559540][  T435]  ? notifier_call_chain (kernel/notifier.c:85)
[   67.559731][  T435]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   67.559886][  T435]  register_netdevice (net/core/dev.c:11488)
[   67.560072][  T435]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   67.560285][  T435]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   67.560471][  T435]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   67.560664][  T435]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   67.560842][  T435]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   67.561031][  T435]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   67.561211][  T435]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   67.561391][  T435]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   67.561596][  T435]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   67.561777][  T435]  vti_init_net (net/ipv4/ip_vti.c:517)
[   67.561966][  T435]  ops_init (net/core/net_namespace.c:137)
[   67.562115][  T435]  setup_net (net/core/net_namespace.c:446)
[   67.562263][  T435]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   67.562445][  T435]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   67.562635][  T435]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   67.562818][  T435]  copy_net_ns (net/core/net_namespace.c:579)
[   67.563005][  T435]  create_new_namespaces (kernel/nsproxy.c:132)
[   67.563187][  T435]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   67.563366][  T435]  ksys_unshare (kernel/fork.c:3243)
[   67.563554][  T435]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   67.563746][  T435]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   67.563933][  T435]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   67.564115][  T435]  ? __ia32_sys_open (fs/open.c:1374)
[   67.564295][  T435]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   67.564483][  T435]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   67.564674][  T435]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   67.564860][  T435]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   67.565039][  T435]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   67.565220][  T435]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   67.565431][  T435] RIP: 0033:0x7f044e75fbcb
[   67.565632][  T435] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   67.566149][  T435] RSP: 002b:00007fff385b2698 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   67.566393][  T435] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f044e75fbcb
[   67.566659][  T435] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   67.566910][  T435] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   67.567151][  T435] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff385b48c0
[   67.567392][  T435] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff385b5886
| [   67.571948][  T435] ------------[ cut here ]------------
| [   67.572126][  T435] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/435
| [   67.572397][  T435] Modules linked in: unix_diag
| [   67.572921][  T435] Tainted: [W]=WARN
[   67.573069][  T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.573277][  T435] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   67.573502][  T435] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   67.574036][  T435] RSP: 0018:ffa0000000e47a78 EFLAGS: 00010286
[   67.574249][  T435] RAX: 00000000ffffffa6 RBX: ff1100000c699c40 RCX: 1ff40000001c8f15
[   67.574497][  T435] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c699cfc
[   67.574756][  T435] RBP: ff110000025d4000 R08: 1fe22000018d33a1 R09: ff11000005b28b80
[   67.575005][  T435] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   67.575245][  T435] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000025d4000
[   67.575495][  T435] FS:  00007f044e49d840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   67.575787][  T435] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.576007][  T435] CR2: 00007f044e69ec20 CR3: 000000000e2de006 CR4: 0000000000771ef0
[   67.576250][  T435] PKRU: 55555554
[   67.576393][  T435] Call Trace:
[   67.576543][  T435]  <TASK>
[   67.576671][  T435]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   67.576851][  T435]  ? notifier_call_chain (kernel/notifier.c:85)
[   67.577043][  T435]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   67.577210][  T435]  register_netdevice (net/core/dev.c:11488)
[   67.577389][  T435]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   67.577615][  T435]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   67.577822][  T435]  register_netdev (net/core/dev.c:11552)
[   67.578012][  T435]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   67.578191][  T435]  ops_init (net/core/net_namespace.c:137)
[   67.578371][  T435]  setup_net (net/core/net_namespace.c:446)
[   67.578524][  T435]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   67.578723][  T435]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   67.578912][  T435]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   67.579094][  T435]  copy_net_ns (net/core/net_namespace.c:579)
[   67.579362][  T435]  create_new_namespaces (kernel/nsproxy.c:132)
[   67.579549][  T435]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   67.579742][  T435]  ksys_unshare (kernel/fork.c:3243)
[   67.579928][  T435]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   67.580191][  T435]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   67.580368][  T435]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   67.580554][  T435]  ? __ia32_sys_open (fs/open.c:1374)
[   67.580746][  T435]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   67.581019][  T435]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   67.581196][  T435]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   67.581379][  T435]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   67.581560][  T435]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   67.581839][  T435]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   67.582055][  T435] RIP: 0033:0x7f044e75fbcb
[   67.582238][  T435] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   67.582863][  T435] RSP: 002b:00007fff385b2698 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   67.583108][  T435] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f044e75fbcb
[   67.583472][  T435] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   67.583726][  T435] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   67.584067][  T435] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff385b48c0
[   67.584305][  T435] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff385b5886
| [   67.589302][  T435] ------------[ cut here ]------------
| [   67.589558][  T435] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/435
| [   67.589841][  T435] Modules linked in: unix_diag
| [   67.590426][  T435] Tainted: [W]=WARN
[   67.590575][  T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.590797][  T435] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   67.591114][  T435] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   67.591725][  T435] RSP: 0018:ffa0000000e47a68 EFLAGS: 00010286
[   67.591947][  T435] RAX: 00000000ffffffa6 RBX: ff11000004e30200 RCX: 1ff40000001c8f13
[   67.592185][  T435] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004e302bc
[   67.592522][  T435] RBP: ff11000005111000 R08: 1fe22000009c6059 R09: ff11000005b28b80
[   67.592776][  T435] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   67.593031][  T435] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005111000
[   67.593360][  T435] FS:  00007f044e49d840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   67.593657][  T435] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.593874][  T435] CR2: 00007f044e69ec20 CR3: 000000000e2de006 CR4: 0000000000771ef0
[   67.594204][  T435] PKRU: 55555554
[   67.594350][  T435] Call Trace:
[   67.594502][  T435]  <TASK>
[   67.594629][  T435]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   67.594900][  T435]  ? notifier_call_chain (kernel/notifier.c:85)
[   67.595077][  T435]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   67.595224][  T435]  register_netdevice (net/core/dev.c:11488)
[   67.595401][  T435]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   67.595720][  T435]  register_netdev (net/core/dev.c:11552)
[   67.595939][  T435]  sit_init_net (net/ipv6/sit.c:1860)
[   67.596128][  T435]  ops_init (net/core/net_namespace.c:137)
[   67.596277][  T435]  setup_net (net/core/net_namespace.c:446)
[   67.596427][  T435]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   67.596702][  T435]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   67.596887][  T435]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   67.597069][  T435]  copy_net_ns (net/core/net_namespace.c:579)
[   67.597251][  T435]  create_new_namespaces (kernel/nsproxy.c:132)
[   67.597524][  T435]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   67.597717][  T435]  ksys_unshare (kernel/fork.c:3243)
[   67.597900][  T435]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   67.598077][  T435]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   67.598339][  T435]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   67.598523][  T435]  ? __ia32_sys_open (fs/open.c:1374)
[   67.598718][  T435]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   67.598900][  T435]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   67.599166][  T435]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   67.599342][  T435]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   67.599525][  T435]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   67.599715][  T435]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   67.600016][  T435] RIP: 0033:0x7f044e75fbcb
[   67.600202][  T435] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   67.600818][  T435] RSP: 002b:00007fff385b2698 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   67.601066][  T435] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f044e75fbcb
[   67.601392][  T435] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   67.601654][  T435] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   67.601900][  T435] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff385b48c0
[   67.602225][  T435] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff385b5886
| [   67.607746][  T435] ------------[ cut here ]------------
| [   67.607925][  T435] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/435
| [   67.608279][  T435] Modules linked in: unix_diag
| [   67.608788][  T435] Tainted: [W]=WARN
[   67.608939][  T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.609234][  T435] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   67.609456][  T435] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   67.610076][  T435] RSP: 0018:ffa0000000e47a78 EFLAGS: 00010286
[   67.610287][  T435] RAX: 00000000ffffffa6 RBX: ff1100000bebe200 RCX: 1ff40000001c8f15
[   67.610632][  T435] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bebe2bc
[   67.610877][  T435] RBP: ff11000009df9000 R08: 1fe22000017d7c59 R09: ff11000005b28b80
[   67.611122][  T435] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   67.611454][  T435] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009df9000
[   67.611709][  T435] FS:  00007f044e49d840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   67.612077][  T435] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.612289][  T435] CR2: 00007f044e69ec20 CR3: 000000000e2de006 CR4: 0000000000771ef0
[   67.612538][  T435] PKRU: 55555554
[   67.612778][  T435] Call Trace:
[   67.612931][  T435]  <TASK>
[   67.613046][  T435]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   67.613223][  T435]  ? notifier_call_chain (kernel/notifier.c:85)
[   67.613398][  T435]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   67.613552][  T435]  register_netdevice (net/core/dev.c:11488)
[   67.613757][  T435]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   67.613974][  T435]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   67.614154][  T435]  register_netdev (net/core/dev.c:11552)
[   67.614420][  T435]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   67.614616][  T435]  ops_init (net/core/net_namespace.c:137)
[   67.614763][  T435]  setup_net (net/core/net_namespace.c:446)
[   67.614917][  T435]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   67.615098][  T435]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   67.615362][  T435]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   67.615549][  T435]  copy_net_ns (net/core/net_namespace.c:579)
[   67.615740][  T435]  create_new_namespaces (kernel/nsproxy.c:132)
[   67.615927][  T435]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   67.616190][  T435]  ksys_unshare (kernel/fork.c:3243)
[   67.616367][  T435]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   67.616553][  T435]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   67.616744][  T435]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   67.617017][  T435]  ? __ia32_sys_open (fs/open.c:1374)
[   67.617195][  T435]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   67.617370][  T435]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   67.617555][  T435]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   67.617832][  T435]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   67.618018][  T435]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   67.618196][  T435]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   67.618403][  T435] RIP: 0033:0x7f044e75fbcb
[   67.618698][  T435] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   67.619299][  T435] RSP: 002b:00007fff385b2698 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   67.619552][  T435] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f044e75fbcb
[   67.619802][  T435] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   67.620137][  T435] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   67.620376][  T435] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff385b48c0
[   67.620719][  T435] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff385b5886
| [   67.650617][  T436] ------------[ cut here ]------------
| [   67.650764][  T436] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/436
| [   67.650993][  T436] Modules linked in: unix_diag
| [   67.651387][  T436] Tainted: [W]=WARN
[   67.651486][  T436] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.651745][  T436] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   67.651919][  T436] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   67.652377][  T436] RSP: 0018:ffa0000000ea7020 EFLAGS: 00010286
[   67.652545][  T436] RAX: 00000000ffffffa6 RBX: ff1100000ce771c0 RCX: 1ff40000001d4dca
[   67.652806][  T436] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce7727c
[   67.653004][  T436] RBP: ff11000008351000 R08: 1fe22000019cee51 R09: ff11000009b52e58
[   67.653197][  T436] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[   67.653389][  T436] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   67.653674][  T436] FS:  00007fa7c8407840(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   67.653907][  T436] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.654069][  T436] CR2: 0000000023723988 CR3: 000000000ceac002 CR4: 0000000000771ef0
[   67.654264][  T436] PKRU: 55555554
[   67.654360][  T436] Call Trace:
[   67.654460][  T436]  <TASK>
[   67.654527][  T436]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   67.654722][  T436]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   67.654823][  T436]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   67.654957][  T436]  __dev_notify_flags (net/core/dev.c:9787)
[   67.655087][  T436]  ? netif_change_name (net/core/dev.c:1495)
[   67.655215][  T436]  ? __dev_change_flags (net/core/dev.c:9752)
[   67.655345][  T436]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   67.655478][  T436]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   67.655692][  T436]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   67.655826][  T436]  netif_change_flags (net/core/dev.c:9820)
[   67.655962][  T436]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   67.656093][  T436]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   67.656225][  T436]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   67.656355][  T436]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   67.656517][  T436]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   67.656716][  T436]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   67.656846][  T436]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   67.656979][  T436]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   67.657109][  T436]  ? __kernel_text_address (kernel/extable.c:79)
[   67.657238][  T436]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   67.657369][  T436]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   67.657503][  T436]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   67.657711][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   67.657840][  T436]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   67.657973][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   67.658101][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   67.658229][  T436]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   67.658358][  T436]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   67.658491][  T436]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   67.658686][  T436]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   67.658818][  T436]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   67.658955][  T436]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   67.659088][  T436]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   67.659219][  T436]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   67.659348][  T436]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   67.659480][  T436]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   67.659685][  T436]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   67.659813][  T436]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   67.659951][  T436]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   67.660081][  T436]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   67.660209][  T436]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   67.660340][  T436]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   67.660474][  T436]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   67.660659][  T436]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   67.660789][  T436]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   67.660924][  T436]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   67.661054][  T436]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   67.661185][  T436]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   67.661313][  T436]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   67.661447][  T436]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   67.661577][  T436]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   67.661762][  T436]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   67.661900][  T436]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   67.662033][  T436]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   67.662165][  T436]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   67.662296][  T436]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   67.662429][  T436]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   67.662560][  T436]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   67.662743][  T436]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   67.662879][  T436]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   67.663014][  T436]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   67.663146][  T436]  ? copy_msghdr_from_user (net/socket.c:2635)
[   67.663274][  T436]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   67.663437][  T436]  ? move_addr_to_kernel (net/socket.c:258)
[   67.663567][  T436]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   67.663728][  T436]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   67.663863][  T436]  ___sys_sendmsg (net/socket.c:2752)
[   67.663994][  T436]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   67.664157][  T436]  ? copy_msghdr_from_user (net/socket.c:2603)
[   67.664298][  T436]  __sys_sendmsg (net/socket.c:2784)
[   67.664433][  T436]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   67.664563][  T436]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   67.664732][  T436]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   67.664867][  T436]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   67.665001][  T436]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   67.665132][  T436]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   67.665263][  T436]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   67.665394][  T436]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   67.665558][  T436] RIP: 0033:0x7fa7c864108e
[   67.665697][  T436] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   67.666167][  T436] RSP: 002b:00007fff4da777d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   67.666363][  T436] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa7c864108e
[   67.666560][  T436] RDX: 0000000000000000 RSI: 00007fff4da77880 RDI: 0000000000000005
[   67.666756][  T436] RBP: 00007fff4da777e0 R08: 0000000000000000 R09: 0000000000000000
[   67.666959][  T436] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d68c
[   67.667153][  T436] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff4da77f50
| [   70.882661][   T68] ------------[ cut here ]------------
| [   70.882821][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   70.883062][   T68] Modules linked in: unix_diag
| [   70.883466][   T68] Tainted: [W]=WARN
[   70.883556][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   70.883714][   T68] Workqueue: netns cleanup_net
[   70.883839][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   70.883999][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   70.884423][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   70.884575][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b081000 RCX: 1ff4000000092eed
[   70.884757][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b0810bc
[   70.884937][   T68] RBP: ff11000009df9000 R08: 1fe2200001610219 R09: ff11000008e42ed0
[   70.885113][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   70.885290][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   70.885474][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   70.885686][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   70.885833][   T68] CR2: 00007f146d4c5574 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   70.886014][   T68] PKRU: 55555554
[   70.886103][   T68] Call Trace:
[   70.886194][   T68]  <TASK>
[   70.886257][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   70.886411][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   70.886556][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   70.886680][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   70.886800][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   70.886922][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   70.887041][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   70.887161][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   70.887281][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   70.887402][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   70.887527][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   70.887651][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   70.887768][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   70.887898][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   70.888014][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   70.888135][   T68]  process_one_work (kernel/workqueue.c:3314)
[   70.888257][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   70.888377][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   70.888508][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   70.888635][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   70.888752][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   70.888877][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   70.888998][   T68]  kthread (kernel/kthread.c:436)
[   70.889088][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   70.889236][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   70.889353][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   70.889478][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   70.889633][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   70.889752][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   70.889875][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   70.892103][   T68] ------------[ cut here ]------------
| [   70.892232][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   70.892470][   T68] Modules linked in: unix_diag
| [   70.892871][   T68] Tainted: [W]=WARN
[   70.892964][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   70.893115][   T68] Workqueue: netns cleanup_net
[   70.893238][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   70.893392][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   70.893819][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   70.893975][   T68] RAX: 00000000ffffffa6 RBX: ff11000004e31540 RCX: 1ff4000000092eed
[   70.894151][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004e315fc
[   70.894328][   T68] RBP: ff11000005111000 R08: 1fe22000009c62c1 R09: ff11000008e42ed0
[   70.894507][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   70.894690][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   70.896246][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   70.896489][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   70.896651][   T68] CR2: 00007f146d4c5574 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   70.896833][   T68] PKRU: 55555554
[   70.896932][   T68] Call Trace:
[   70.897021][   T68]  <TASK>
[   70.897087][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   70.897239][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   70.897386][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   70.897505][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   70.897633][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   70.897750][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   70.897871][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   70.897994][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   70.898113][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   70.898230][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   70.898351][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   70.898475][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   70.898595][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   70.898713][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   70.898829][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   70.898952][   T68]  process_one_work (kernel/workqueue.c:3314)
[   70.899073][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   70.899195][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   70.899320][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   70.899443][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   70.899638][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   70.899759][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   70.899883][   T68]  kthread (kernel/kthread.c:436)
[   70.899973][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   70.900190][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   70.900308][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   70.900429][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   70.900575][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   70.900771][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   70.900896][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   70.903115][   T68] ------------[ cut here ]------------
| [   70.903232][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   70.903536][   T68] Modules linked in: unix_diag
| [   70.904008][   T68] Tainted: [W]=WARN
[   70.904097][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   70.904243][   T68] Workqueue: netns cleanup_net
[   70.904365][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   70.904607][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   70.905109][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   70.905259][   T68] RAX: 00000000ffffffa6 RBX: ff11000004c87540 RCX: 1ff4000000092eed
[   70.905440][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004c875fc
[   70.905693][   T68] RBP: ff110000025d4000 R08: 1fe2200000990ec1 R09: ff11000008e42ed0
[   70.905872][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   70.906047][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   70.906296][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   70.906504][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   70.906729][   T68] CR2: 00007f146d4c5574 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   70.906907][   T68] PKRU: 55555554
[   70.906997][   T68] Call Trace:
[   70.907089][   T68]  <TASK>
[   70.907150][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   70.907444][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   70.907595][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   70.907713][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   70.907837][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   70.908029][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   70.908146][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   70.908265][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   70.908390][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   70.908586][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   70.908707][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   70.908826][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   70.908950][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   70.909208][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   70.909325][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   70.909447][   T68]  process_one_work (kernel/workqueue.c:3314)
[   70.909570][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   70.909697][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   70.909825][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   70.909952][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   70.910072][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   70.910264][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   70.910381][   T68]  kthread (kernel/kthread.c:436)
[   70.910474][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   70.910694][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   70.910812][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   70.910932][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   70.911082][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   70.911201][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   70.911319][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   70.913560][   T68] ------------[ cut here ]------------
| [   70.913688][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   70.913995][   T68] Modules linked in: unix_diag
| [   70.914459][   T68] Tainted: [W]=WARN
[   70.914549][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   70.914702][   T68] Workqueue: netns cleanup_net
[   70.914823][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   70.915060][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   70.915554][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   70.915707][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c4c6580 RCX: 1ff4000000092eed
[   70.915893][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c4c663c
[   70.916143][   T68] RBP: ff1100000a99c000 R08: 1fe2200001898cc9 R09: ff11000008e42ed0
[   70.916324][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   70.916504][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   70.916689][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   70.916900][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   70.917047][   T68] CR2: 00007f146d4c5574 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   70.917298][   T68] PKRU: 55555554
[   70.917384][   T68] Call Trace:
[   70.917479][   T68]  <TASK>
[   70.917541][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   70.917698][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   70.917842][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   70.917965][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   70.918083][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   70.918271][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   70.918388][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   70.918512][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   70.918638][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   70.918754][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   70.918879][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   70.918999][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   70.919116][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   70.919375][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   70.919501][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   70.919625][   T68]  process_one_work (kernel/workqueue.c:3314)
[   70.919745][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   70.919940][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   70.920061][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   70.920180][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   70.920302][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   70.920495][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   70.920621][   T68]  kthread (kernel/kthread.c:436)
[   70.920710][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   70.920855][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   70.921050][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   70.921169][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   70.921316][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   70.921507][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   70.921630][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   70.924029][   T68] ------------[ cut here ]------------
| [   70.924149][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   70.924380][   T68] Modules linked in: unix_diag
| [   70.924775][   T68] Tainted: [W]=WARN
[   70.924871][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   70.925017][   T68] Workqueue: netns cleanup_net
[   70.925138][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   70.925288][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   70.925712][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   70.925859][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d538580 RCX: 1ff4000000092eed
[   70.926042][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d53863c
[   70.926217][   T68] RBP: ff11000008b39000 R08: 1fe2200001aa70c9 R09: ff11000008e42ed0
[   70.926390][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   70.926564][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   70.926742][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   70.926952][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   70.927104][   T68] CR2: 00007f146d4c5574 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   70.927279][   T68] PKRU: 55555554
[   70.927370][   T68] Call Trace:
[   70.927461][   T68]  <TASK>
[   70.927522][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   70.927677][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   70.927822][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   70.927951][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   70.928068][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   70.928185][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   70.928303][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   70.928423][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   70.928542][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   70.928664][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   70.928786][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   70.928906][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   70.929377][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   70.929504][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   70.929624][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   70.929741][   T68]  process_one_work (kernel/workqueue.c:3314)
[   70.929871][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   70.929990][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   70.930111][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   70.930228][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   70.930422][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   70.930541][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   70.930662][   T68]  kthread (kernel/kthread.c:436)
[   70.930751][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   70.930970][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   70.931088][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   70.931205][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   70.931350][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   70.931541][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   70.931665][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   70.953477][   T68] ------------[ cut here ]------------
| [   70.953619][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   70.953867][   T68] Modules linked in: unix_diag
| [   70.954276][   T68] Tainted: [W]=WARN
[   70.954369][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   70.954527][   T68] Workqueue: netns cleanup_net
[   70.954998][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   70.955165][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   70.955657][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   70.955814][   T68] RAX: 00000000ffffffa6 RBX: ff11000001f8e740 RCX: 1ff4000000092eaf
[   70.956004][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000001f8e7fc
[   70.956185][   T68] RBP: ff11000008351000 R08: 1fe22000003f1d01 R09: ff11000008e42ed0
[   70.956368][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   70.956554][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   70.956791][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   70.957012][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   70.957214][   T68] CR2: 00007f146d4c5574 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   70.957399][   T68] PKRU: 55555554
[   70.957495][   T68] Call Trace:
[   70.957639][   T68]  <TASK>
[   70.957705][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   70.957829][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   70.957929][   T68]  netif_close_many (net/core/dev.c:1804)
[   70.958053][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   70.958175][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   70.958298][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   70.958421][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   70.958545][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   70.958750][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   70.958911][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   70.959034][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   70.959157][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   70.959280][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   70.959438][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   70.959565][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   70.959741][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   70.959871][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   70.959996][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   70.960120][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   70.960246][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   70.960369][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   70.960499][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   70.960673][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   70.960797][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   70.960927][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   70.961048][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   70.961174][   T68]  process_one_work (kernel/workqueue.c:3314)
[   70.961302][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   70.961427][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   70.961555][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   70.961730][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   70.961853][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   70.961982][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   70.962106][   T68]  kthread (kernel/kthread.c:436)
[   70.962198][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   70.962350][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   70.962477][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   70.962654][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   70.962807][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   70.962935][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   70.963060][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   70.966061][   T68] ------------[ cut here ]------------
| [   70.966185][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   70.966421][   T68] Modules linked in: unix_diag
| [   70.966818][   T68] Tainted: [W]=WARN
[   70.966914][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   70.967061][   T68] Workqueue: netns cleanup_net
[   70.967185][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   70.967339][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   70.967772][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   70.967929][   T68] RAX: 00000000ffffffa6 RBX: ff11000001f8e580 RCX: 1ff4000000092ed5
[   70.968112][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000001f8e63c
[   70.968289][   T68] RBP: ff11000008351000 R08: 1fe22000003f1cc9 R09: ff11000008e42ed0
[   70.968469][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   70.968710][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   70.968893][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   70.969099][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   70.969248][   T68] CR2: 00007f146d4c5574 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   70.969431][   T68] PKRU: 55555554
[   70.969519][   T68] Call Trace:
[   70.969655][   T68]  <TASK>
[   70.969717][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   70.969917][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   70.970074][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   70.970194][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   70.970317][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   70.970441][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   70.970560][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   70.970725][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   70.970846][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   70.970970][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   70.971091][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   70.971216][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   70.971336][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   70.971460][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   70.971580][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   70.971747][   T68]  process_one_work (kernel/workqueue.c:3314)
[   70.971875][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   70.971997][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   70.972121][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   70.972241][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   70.972360][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   70.972487][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   70.972654][   T68]  kthread (kernel/kthread.c:436)
[   70.972744][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   70.972904][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   70.973025][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   70.973145][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   70.973295][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   70.973417][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   70.973536][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   71.008775][  T452] ------------[ cut here ]------------
| [   71.008961][  T452] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/452
| [   71.009239][  T452] Modules linked in: unix_diag
| [   71.009980][  T452] Tainted: [W]=WARN
[   71.010124][  T452] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   71.010338][  T452] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   71.010564][  T452] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   71.011097][  T452] RSP: 0018:ffa0000000c87a80 EFLAGS: 00010286
[   71.011309][  T452] RAX: 00000000ffffffa6 RBX: ff1100000b62eac0 RCX: 1ff4000000190f16
[   71.011557][  T452] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b62eb7c
[   71.011815][  T452] RBP: ff11000007861000 R08: 1fe22000016c5d71 R09: ff1100000f11ae80
[   71.012067][  T452] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   71.012309][  T452] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007861000
[   71.012559][  T452] FS:  00007f4394a15840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   71.012852][  T452] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.013073][  T452] CR2: 00007f4394c21690 CR3: 000000000f214001 CR4: 0000000000771ef0
[   71.013317][  T452] PKRU: 55555554
[   71.013469][  T452] Call Trace:
[   71.013626][  T452]  <TASK>
[   71.013741][  T452]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   71.013932][  T452]  ? notifier_call_chain (kernel/notifier.c:85)
[   71.014115][  T452]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   71.014262][  T452]  register_netdevice (net/core/dev.c:11488)
[   71.014445][  T452]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   71.014668][  T452]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   71.014848][  T452]  register_netdev (net/core/dev.c:11552)
[   71.015038][  T452]  loopback_net_init (drivers/net/loopback.c:218)
[   71.015219][  T452]  ops_init (net/core/net_namespace.c:137)
[   71.015369][  T452]  setup_net (net/core/net_namespace.c:446)
[   71.015523][  T452]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   71.015712][  T452]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   71.015899][  T452]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   71.016082][  T452]  copy_net_ns (net/core/net_namespace.c:579)
[   71.016262][  T452]  create_new_namespaces (kernel/nsproxy.c:132)
[   71.016447][  T452]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   71.016638][  T452]  ksys_unshare (kernel/fork.c:3243)
[   71.016818][  T452]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   71.017008][  T452]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   71.017187][  T452]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   71.017367][  T452]  ? __ia32_sys_open (fs/open.c:1374)
[   71.017555][  T452]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   71.017747][  T452]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   71.017939][  T452]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   71.018119][  T452]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   71.018296][  T452]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   71.018484][  T452]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   71.018706][  T452] RIP: 0033:0x7f4394cd7bcb
[   71.018901][  T452] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   71.019420][  T452] RSP: 002b:00007ffe8d95f168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   71.019684][  T452] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4394cd7bcb
[   71.019936][  T452] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   71.020179][  T452] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   71.020425][  T452] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe8d961390
[   71.020681][  T452] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe8d962886
| [   71.024948][  T452] ------------[ cut here ]------------
| [   71.025125][  T452] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/452
| [   71.025398][  T452] Modules linked in: unix_diag
| [   71.025919][  T452] Tainted: [W]=WARN
[   71.026068][  T452] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   71.026279][  T452] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   71.026503][  T452] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   71.027033][  T452] RSP: 0018:ffa0000000c87918 EFLAGS: 00010286
[   71.027246][  T452] RAX: 00000000ffffffa6 RBX: ff1100000c22e740 RCX: 1ff4000000190ee9
[   71.027493][  T452] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c22e7fc
[   71.027747][  T452] RBP: ff11000008b51000 R08: 1fe2200001845d01 R09: ff1100000f11ae80
[   71.028000][  T452] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   71.028243][  T452] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b51000
[   71.028495][  T452] FS:  00007f4394a15840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   71.028784][  T452] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.029006][  T452] CR2: 00007f4394c21690 CR3: 000000000f214001 CR4: 0000000000771ef0
[   71.029254][  T452] PKRU: 55555554
[   71.029398][  T452] Call Trace:
[   71.029553][  T452]  <TASK>
[   71.029679][  T452]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   71.029857][  T452]  ? notifier_call_chain (kernel/notifier.c:85)
[   71.030043][  T452]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   71.030190][  T452]  register_netdevice (net/core/dev.c:11488)
[   71.030370][  T452]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   71.030602][  T452]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   71.030783][  T452]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   71.030968][  T452]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   71.031145][  T452]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   71.031324][  T452]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   71.031513][  T452]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   71.031706][  T452]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   71.031897][  T452]  ops_init (net/core/net_namespace.c:137)
[   71.032046][  T452]  setup_net (net/core/net_namespace.c:446)
[   71.032192][  T452]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   71.032367][  T452]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   71.032553][  T452]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   71.032746][  T452]  copy_net_ns (net/core/net_namespace.c:579)
[   71.032934][  T452]  create_new_namespaces (kernel/nsproxy.c:132)
[   71.033120][  T452]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   71.033300][  T452]  ksys_unshare (kernel/fork.c:3243)
[   71.033488][  T452]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   71.033679][  T452]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   71.033854][  T452]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   71.034041][  T452]  ? __ia32_sys_open (fs/open.c:1374)
[   71.034221][  T452]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   71.034400][  T452]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   71.034597][  T452]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   71.034774][  T452]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   71.034962][  T452]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   71.035141][  T452]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   71.035348][  T452] RIP: 0033:0x7f4394cd7bcb
[   71.035536][  T452] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   71.036068][  T452] RSP: 002b:00007ffe8d95f168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   71.036311][  T452] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4394cd7bcb
[   71.036559][  T452] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   71.036815][  T452] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   71.037065][  T452] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe8d961390
[   71.037304][  T452] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe8d962886
| [   71.041579][  T452] ------------[ cut here ]------------
| [   71.041764][  T452] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/452
| [   71.042047][  T452] Modules linked in: unix_diag
| [   71.042549][  T452] Tainted: [W]=WARN
[   71.042707][  T452] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   71.042927][  T452] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   71.043147][  T452] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   71.043681][  T452] RSP: 0018:ffa0000000c878f8 EFLAGS: 00010286
[   71.043902][  T452] RAX: 00000000ffffffa6 RBX: ff1100000e37b540 RCX: 1ff4000000190ee5
[   71.044143][  T452] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e37b5fc
[   71.044386][  T452] RBP: ff1100000916c000 R08: 1fe2200001c6f6c1 R09: ff1100000f11ae80
[   71.044644][  T452] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   71.044895][  T452] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000916c000
[   71.045138][  T452] FS:  00007f4394a15840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   71.045414][  T452] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.045643][  T452] CR2: 00007f4394c21690 CR3: 000000000f214001 CR4: 0000000000771ef0
[   71.045897][  T452] PKRU: 55555554
[   71.046042][  T452] Call Trace:
[   71.046187][  T452]  <TASK>
[   71.046302][  T452]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   71.046489][  T452]  ? notifier_call_chain (kernel/notifier.c:85)
[   71.046680][  T452]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   71.046827][  T452]  register_netdevice (net/core/dev.c:11488)
[   71.047011][  T452]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   71.047223][  T452]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   71.047402][  T452]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   71.047602][  T452]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   71.047778][  T452]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   71.047966][  T452]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   71.048145][  T452]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   71.048324][  T452]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   71.048516][  T452]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   71.048712][  T452]  vti_init_net (net/ipv4/ip_vti.c:517)
[   71.048896][  T452]  ops_init (net/core/net_namespace.c:137)
[   71.049044][  T452]  setup_net (net/core/net_namespace.c:446)
[   71.049191][  T452]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   71.049367][  T452]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   71.049554][  T452]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   71.049750][  T452]  copy_net_ns (net/core/net_namespace.c:579)
[   71.049938][  T452]  create_new_namespaces (kernel/nsproxy.c:132)
[   71.050118][  T452]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   71.050296][  T452]  ksys_unshare (kernel/fork.c:3243)
[   71.050484][  T452]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   71.050677][  T452]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   71.050855][  T452]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   71.051044][  T452]  ? __ia32_sys_open (fs/open.c:1374)
[   71.051224][  T452]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   71.051401][  T452]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   71.051600][  T452]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   71.051780][  T452]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   71.051966][  T452]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   71.052145][  T452]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   71.052355][  T452] RIP: 0033:0x7f4394cd7bcb
[   71.052552][  T452] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   71.053078][  T452] RSP: 002b:00007ffe8d95f168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   71.053322][  T452] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4394cd7bcb
[   71.053577][  T452] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   71.053833][  T452] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   71.054082][  T452] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe8d961390
[   71.054322][  T452] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe8d962886
| [   71.058949][  T452] ------------[ cut here ]------------
| [   71.059121][  T452] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/452
| [   71.059391][  T452] Modules linked in: unix_diag
| [   71.060392][  T452] Tainted: [W]=WARN
[   71.060567][  T452] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   71.060789][  T452] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   71.061011][  T452] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   71.061527][  T452] RSP: 0018:ffa0000000c87a78 EFLAGS: 00010286
[   71.061752][  T452] RAX: 00000000ffffffa6 RBX: ff1100000ce76200 RCX: 1ff4000000190f15
[   71.062003][  T452] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce762bc
[   71.062247][  T452] RBP: ff1100000a96c000 R08: 1fe22000019cec59 R09: ff1100000f11ae80
[   71.062493][  T452] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   71.062748][  T452] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a96c000
[   71.063005][  T452] FS:  00007f4394a15840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   71.063284][  T452] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.063502][  T452] CR2: 00007f4394c21690 CR3: 000000000f214001 CR4: 0000000000771ef0
[   71.063760][  T452] PKRU: 55555554
[   71.063910][  T452] Call Trace:
[   71.064054][  T452]  <TASK>
[   71.064168][  T452]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   71.064347][  T452]  ? notifier_call_chain (kernel/notifier.c:85)
[   71.064534][  T452]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   71.064696][  T452]  register_netdevice (net/core/dev.c:11488)
[   71.064883][  T452]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   71.065098][  T452]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   71.065279][  T452]  register_netdev (net/core/dev.c:11552)
[   71.065465][  T452]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   71.065660][  T452]  ops_init (net/core/net_namespace.c:137)
[   71.065811][  T452]  setup_net (net/core/net_namespace.c:446)
[   71.065968][  T452]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   71.066147][  T452]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   71.066326][  T452]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   71.066515][  T452]  copy_net_ns (net/core/net_namespace.c:579)
[   71.066709][  T452]  create_new_namespaces (kernel/nsproxy.c:132)
[   71.066899][  T452]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   71.067083][  T452]  ksys_unshare (kernel/fork.c:3243)
[   71.067262][  T452]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   71.067446][  T452]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   71.067634][  T452]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   71.067812][  T452]  ? __ia32_sys_open (fs/open.c:1374)
[   71.068003][  T452]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   71.068183][  T452]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   71.068359][  T452]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   71.068548][  T452]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   71.068736][  T452]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   71.068923][  T452]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   71.069134][  T452] RIP: 0033:0x7f4394cd7bcb
[   71.069320][  T452] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   71.069855][  T452] RSP: 002b:00007ffe8d95f168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   71.070107][  T452] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4394cd7bcb
[   71.070346][  T452] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   71.070606][  T452] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   71.070849][  T452] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe8d961390
[   71.071098][  T452] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe8d962886
| [   71.075699][  T452] ------------[ cut here ]------------
| [   71.075883][  T452] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/452
| [   71.076159][  T452] Modules linked in: unix_diag
| [   71.076667][  T452] Tainted: [W]=WARN
[   71.076816][  T452] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   71.077037][  T452] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   71.077254][  T452] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   71.077787][  T452] RSP: 0018:ffa0000000c87a68 EFLAGS: 00010286
[   71.078006][  T452] RAX: 00000000ffffffa6 RBX: ff11000009a8ae40 RCX: 1ff4000000190f13
[   71.078247][  T452] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009a8aefc
[   71.078494][  T452] RBP: ff1100000a9a1000 R08: 1fe22000013515e1 R09: ff1100000f11ae80
[   71.078747][  T452] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   71.079000][  T452] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a9a1000
[   71.079245][  T452] FS:  00007f4394a15840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   71.079527][  T452] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.079751][  T452] CR2: 00007f4394c21690 CR3: 000000000f214001 CR4: 0000000000771ef0
[   71.080006][  T452] PKRU: 55555554
[   71.080150][  T452] Call Trace:
[   71.080296][  T452]  <TASK>
[   71.080412][  T452]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   71.080608][  T452]  ? notifier_call_chain (kernel/notifier.c:85)
[   71.080786][  T452]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   71.080940][  T452]  register_netdevice (net/core/dev.c:11488)
[   71.081121][  T452]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   71.081337][  T452]  register_netdev (net/core/dev.c:11552)
[   71.081521][  T452]  sit_init_net (net/ipv6/sit.c:1860)
[   71.081713][  T452]  ops_init (net/core/net_namespace.c:137)
[   71.081860][  T452]  setup_net (net/core/net_namespace.c:446)
[   71.082016][  T452]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   71.082192][  T452]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   71.082369][  T452]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   71.082558][  T452]  copy_net_ns (net/core/net_namespace.c:579)
[   71.082754][  T452]  create_new_namespaces (kernel/nsproxy.c:132)
[   71.082944][  T452]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   71.083122][  T452]  ksys_unshare (kernel/fork.c:3243)
[   71.083299][  T452]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   71.083485][  T452]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   71.083676][  T452]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   71.083858][  T452]  ? __ia32_sys_open (fs/open.c:1374)
[   71.084046][  T452]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   71.084222][  T452]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   71.084398][  T452]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   71.084597][  T452]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   71.084775][  T452]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   71.084964][  T452]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   71.085173][  T452] RIP: 0033:0x7f4394cd7bcb
[   71.085360][  T452] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   71.085893][  T452] RSP: 002b:00007ffe8d95f168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   71.086135][  T452] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4394cd7bcb
[   71.086379][  T452] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   71.086633][  T452] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   71.086880][  T452] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe8d961390
[   71.087123][  T452] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe8d962886
| [   71.092255][  T452] ------------[ cut here ]------------
| [   71.092433][  T452] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/452
| [   71.093223][  T452] Modules linked in: unix_diag
| [   71.093853][  T452] Tainted: [W]=WARN
[   71.094063][  T452] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   71.094327][  T452] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   71.094627][  T452] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   71.095204][  T452] RSP: 0018:ffa0000000c87a78 EFLAGS: 00010286
[   71.095477][  T452] RAX: 00000000ffffffa6 RBX: ff11000001f8e900 RCX: 1ff4000000190f15
[   71.095785][  T452] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000001f8e9bc
[   71.096092][  T452] RBP: ff11000008144000 R08: 1fe22000003f1d39 R09: ff1100000f11ae80
[   71.096392][  T452] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   71.096707][  T452] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008144000
[   71.097015][  T452] FS:  00007f4394a15840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   71.097345][  T452] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.097636][  T452] CR2: 00007f4394c21690 CR3: 000000000f214001 CR4: 0000000000771ef0
[   71.097941][  T452] PKRU: 55555554
[   71.098140][  T452] Call Trace:
[   71.098339][  T452]  <TASK>
[   71.098514][  T452]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   71.098756][  T452]  ? notifier_call_chain (kernel/notifier.c:85)
[   71.098996][  T452]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   71.099203][  T452]  register_netdevice (net/core/dev.c:11488)
[   71.099445][  T452]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   71.099721][  T452]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   71.099964][  T452]  register_netdev (net/core/dev.c:11552)
[   71.100198][  T452]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   71.100440][  T452]  ops_init (net/core/net_namespace.c:137)
[   71.100655][  T452]  setup_net (net/core/net_namespace.c:446)
[   71.100857][  T452]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   71.101099][  T452]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   71.101329][  T452]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   71.101571][  T452]  copy_net_ns (net/core/net_namespace.c:579)
[   71.101815][  T452]  create_new_namespaces (kernel/nsproxy.c:132)
[   71.102063][  T452]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   71.102297][  T452]  ksys_unshare (kernel/fork.c:3243)
[   71.102540][  T452]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   71.102784][  T452]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   71.103026][  T452]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   71.103262][  T452]  ? __ia32_sys_open (fs/open.c:1374)
[   71.103502][  T452]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   71.103748][  T452]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   71.103990][  T452]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   71.104223][  T452]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   71.104466][  T452]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   71.104710][  T452]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   71.104981][  T452] RIP: 0033:0x7f4394cd7bcb
[   71.105220][  T452] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   71.105806][  T452] RSP: 002b:00007ffe8d95f168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   71.106110][  T452] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f4394cd7bcb
[   71.106407][  T452] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   71.106719][  T452] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   71.107026][  T452] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe8d961390
[   71.107320][  T452] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe8d962886
| [   71.138085][  T453] ------------[ cut here ]------------
| [   71.138236][  T453] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/453
| [   71.138469][  T453] Modules linked in: unix_diag
| [   71.138884][  T453] Tainted: [W]=WARN
[   71.138982][  T453] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   71.139144][  T453] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   71.139317][  T453] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   71.139783][  T453] RSP: 0018:ffa0000000f27020 EFLAGS: 00010286
[   71.139953][  T453] RAX: 00000000ffffffa6 RBX: ff1100000c699540 RCX: 1ff40000001e4dca
[   71.140147][  T453] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c6995fc
[   71.140340][  T453] RBP: ff11000007861000 R08: 1fe22000018d32c1 R09: ff1100000784ae58
[   71.140538][  T453] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[   71.140736][  T453] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   71.140932][  T453] FS:  00007fde5981f840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   71.141163][  T453] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.141327][  T453] CR2: 000000000dfc1988 CR3: 000000000f214006 CR4: 0000000000771ef0
[   71.141525][  T453] PKRU: 55555554
[   71.141627][  T453] Call Trace:
[   71.141723][  T453]  <TASK>
[   71.141790][  T453]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   71.141929][  T453]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   71.142031][  T453]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   71.142159][  T453]  __dev_notify_flags (net/core/dev.c:9787)
[   71.142292][  T453]  ? netif_change_name (net/core/dev.c:1495)
[   71.142423][  T453]  ? __dev_change_flags (net/core/dev.c:9752)
[   71.142552][  T453]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   71.142688][  T453]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   71.142820][  T453]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   71.142961][  T453]  netif_change_flags (net/core/dev.c:9820)
[   71.143092][  T453]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   71.143222][  T453]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   71.143354][  T453]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   71.143486][  T453]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   71.143654][  T453]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   71.143786][  T453]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   71.143922][  T453]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   71.144050][  T453]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   71.144181][  T453]  ? __kernel_text_address (kernel/extable.c:79)
[   71.144311][  T453]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   71.144445][  T453]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   71.144573][  T453]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   71.144779][  T453]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   71.144995][  T453]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   71.145123][  T453]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   71.145250][  T453]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   71.145380][  T453]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   71.145544][  T453]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   71.145740][  T453]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   71.145873][  T453]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   71.146007][  T453]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   71.146139][  T453]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   71.146270][  T453]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   71.146404][  T453]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   71.146537][  T453]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   71.146741][  T453]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   71.146876][  T453]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   71.147003][  T453]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   71.147136][  T453]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   71.147265][  T453]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   71.147394][  T453]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   71.147527][  T453]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   71.147740][  T453]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   71.147873][  T453]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   71.148004][  T453]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   71.148133][  T453]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   71.148263][  T453]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   71.148394][  T453]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   71.148527][  T453]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   71.148726][  T453]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   71.148858][  T453]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   71.148994][  T453]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   71.149127][  T453]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   71.149257][  T453]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   71.149386][  T453]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   71.149518][  T453]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   71.149652][  T453]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   71.149781][  T453]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   71.149917][  T453]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   71.150049][  T453]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   71.150183][  T453]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   71.150315][  T453]  ? copy_msghdr_from_user (net/socket.c:2635)
[   71.150447][  T453]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   71.150612][  T453]  ? move_addr_to_kernel (net/socket.c:258)
[   71.150742][  T453]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   71.150874][  T453]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   71.151005][  T453]  ___sys_sendmsg (net/socket.c:2752)
[   71.151134][  T453]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   71.151294][  T453]  ? copy_msghdr_from_user (net/socket.c:2603)
[   71.151435][  T453]  __sys_sendmsg (net/socket.c:2784)
[   71.151567][  T453]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   71.151700][  T453]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   71.151867][  T453]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   71.151998][  T453]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   71.152129][  T453]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   71.152257][  T453]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   71.152386][  T453]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   71.152516][  T453]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   71.152685][  T453] RIP: 0033:0x7fde59a5908e
[   71.152877][  T453] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   71.153337][  T453] RSP: 002b:00007ffe47c366f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   71.153537][  T453] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fde59a5908e
[   71.153735][  T453] RDX: 0000000000000000 RSI: 00007ffe47c367a0 RDI: 0000000000000005
[   71.153934][  T453] RBP: 00007ffe47c36700 R08: 0000000000000000 R09: 0000000000000000
[   71.154130][  T453] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d690
[   71.154324][  T453] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe47c36e70
| [   76.388602][   T68] ------------[ cut here ]------------
| [   76.388765][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   76.389010][   T68] Modules linked in: unix_diag
| [   76.389414][   T68] Tainted: [W]=WARN
[   76.389505][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.389683][   T68] Workqueue: netns cleanup_net
[   76.389810][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   76.389975][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   76.390396][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   76.390552][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c8e1540 RCX: 1ff4000000092eed
[   76.390734][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c8e15fc
[   76.390914][   T68] RBP: ff11000008144000 R08: 1fe220000191c2c1 R09: ff11000008e42ed0
[   76.391096][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   76.391282][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   76.391467][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   76.391679][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.391826][   T68] CR2: 00007f90906def98 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   76.392008][   T68] PKRU: 55555554
[   76.392097][   T68] Call Trace:
[   76.392187][   T68]  <TASK>
[   76.392254][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   76.392405][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   76.392553][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   76.392679][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   76.392800][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   76.392922][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   76.393040][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   76.393158][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   76.393279][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   76.393396][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   76.393522][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   76.393646][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   76.393762][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   76.393887][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   76.394004][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   76.394123][   T68]  process_one_work (kernel/workqueue.c:3314)
[   76.394243][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   76.394361][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   76.394485][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   76.394610][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   76.394727][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   76.394846][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   76.394973][   T68]  kthread (kernel/kthread.c:436)
[   76.395060][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   76.395207][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   76.395324][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   76.395446][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   76.395596][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   76.395713][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   76.395829][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   76.398015][   T68] ------------[ cut here ]------------
| [   76.398132][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   76.398362][   T68] Modules linked in: unix_diag
| [   76.398760][   T68] Tainted: [W]=WARN
[   76.398848][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.399002][   T68] Workqueue: netns cleanup_net
[   76.399123][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   76.399278][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   76.399703][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   76.399853][   T68] RAX: 00000000ffffffa6 RBX: ff1100000bc343c0 RCX: 1ff4000000092eed
[   76.400030][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bc3447c
[   76.400207][   T68] RBP: ff1100000a9a1000 R08: 1fe2200001786891 R09: ff11000008e42ed0
[   76.400378][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   76.400557][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   76.400737][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   76.400946][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.401093][   T68] CR2: 00007f90906def98 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   76.401268][   T68] PKRU: 55555554
[   76.401355][   T68] Call Trace:
[   76.401446][   T68]  <TASK>
[   76.401508][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   76.401661][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   76.401806][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   76.401929][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   76.402049][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   76.402165][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   76.402283][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   76.402406][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   76.402528][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   76.402651][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   76.402771][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   76.402897][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   76.403014][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   76.403135][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   76.403253][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   76.403373][   T68]  process_one_work (kernel/workqueue.c:3314)
[   76.403499][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   76.403623][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   76.403746][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   76.403864][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   76.404060][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   76.404178][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   76.404297][   T68]  kthread (kernel/kthread.c:436)
[   76.404386][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   76.404613][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   76.404732][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   76.404848][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   76.405004][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   76.405264][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   76.405382][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   76.409805][   T68] ------------[ cut here ]------------
| [   76.409941][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   76.410177][   T68] Modules linked in: unix_diag
| [   76.410574][   T68] Tainted: [W]=WARN
[   76.411171][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.411319][   T68] Workqueue: netns cleanup_net
[   76.411445][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   76.411653][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   76.412129][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   76.412279][   T68] RAX: 00000000ffffffa6 RBX: ff110000021d6900 RCX: 1ff4000000092eed
[   76.412459][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000021d69bc
[   76.412686][   T68] RBP: ff1100000a96c000 R08: 1fe220000043ad39 R09: ff11000008e42ed0
[   76.412861][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   76.413041][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   76.413216][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   76.413430][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.413578][   T68] CR2: 00007f90906def98 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   76.413805][   T68] PKRU: 55555554
[   76.413898][   T68] Call Trace:
[   76.413993][   T68]  <TASK>
[   76.414055][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   76.414207][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   76.414357][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   76.414478][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   76.414646][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   76.414764][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   76.414890][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   76.415009][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   76.415130][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   76.415248][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   76.415371][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   76.415495][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   76.415662][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   76.415783][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   76.415906][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   76.416032][   T68]  process_one_work (kernel/workqueue.c:3314)
[   76.416159][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   76.416276][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   76.416399][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   76.416525][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   76.416690][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   76.416815][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   76.416940][   T68]  kthread (kernel/kthread.c:436)
[   76.417030][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   76.417174][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   76.417292][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   76.417415][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   76.417569][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   76.417735][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   76.417853][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   76.420041][   T68] ------------[ cut here ]------------
| [   76.420205][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   76.420492][   T68] Modules linked in: unix_diag
| [   76.421006][   T68] Tainted: [W]=WARN
[   76.421141][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.421332][   T68] Workqueue: netns cleanup_net
[   76.421513][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   76.421804][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   76.422320][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   76.422566][   T68] RAX: 00000000ffffffa6 RBX: ff1100000bce2c80 RCX: 1ff4000000092eed
[   76.422849][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bce2d3c
[   76.423125][   T68] RBP: ff1100000916c000 R08: 1fe220000179c5a9 R09: ff11000008e42ed0
[   76.423389][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   76.423658][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   76.423901][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   76.424157][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.424349][   T68] CR2: 00007fa55b9edf98 CR3: 00000000097f9006 CR4: 0000000000771ef0
[   76.424605][   T68] PKRU: 55555554
[   76.424738][   T68] Call Trace:
[   76.424872][   T68]  <TASK>
[   76.424988][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   76.425187][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   76.425379][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   76.425550][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   76.425729][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   76.425901][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   76.426067][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   76.426234][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   76.426401][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   76.426574][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   76.426758][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   76.426932][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   76.427129][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   76.427297][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   76.427469][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   76.427651][   T68]  process_one_work (kernel/workqueue.c:3314)
[   76.427823][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   76.428002][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   76.428174][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   76.428341][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   76.428513][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   76.428692][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   76.428856][   T68]  kthread (kernel/kthread.c:436)
[   76.429005][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   76.429217][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   76.429384][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   76.429555][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   76.429763][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   76.429936][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   76.430103][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   76.432505][   T68] ------------[ cut here ]------------
| [   76.432684][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   76.432966][   T68] Modules linked in: unix_diag
| [   76.433442][   T68] Tainted: [W]=WARN
[   76.433664][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.433860][   T68] Workqueue: netns cleanup_net
[   76.434050][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   76.434247][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   76.434723][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   76.434945][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b251540 RCX: 1ff4000000092eed
[   76.435168][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b2515fc
[   76.435385][   T68] RBP: ff11000008b51000 R08: 1fe220000164a2c1 R09: ff11000008e42ed0
[   76.435626][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   76.435849][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   76.436078][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   76.436327][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.436527][   T68] CR2: 00007fa55b9edf98 CR3: 00000000097f9006 CR4: 0000000000771ef0
[   76.436763][   T68] PKRU: 55555554
[   76.436907][   T68] Call Trace:
[   76.437042][   T68]  <TASK>
[   76.437151][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   76.437377][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   76.437575][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   76.437825][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   76.438006][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   76.438273][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   76.438445][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   76.438696][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   76.438971][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   76.439135][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   76.439301][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   76.439547][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   76.439725][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   76.439901][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   76.440065][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   76.440232][   T68]  process_one_work (kernel/workqueue.c:3314)
[   76.440479][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   76.440658][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   76.440857][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   76.441037][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   76.441274][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   76.441444][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   76.441625][   T68]  kthread (kernel/kthread.c:436)
[   76.441761][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   76.441962][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   76.442127][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   76.442320][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   76.442609][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   76.442775][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   76.442948][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   76.458396][   T68] ------------[ cut here ]------------
| [   76.458570][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   76.458885][   T68] Modules linked in: unix_diag
| [   76.459388][   T68] Tainted: [W]=WARN
[   76.459532][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.459953][   T68] Workqueue: netns cleanup_net
[   76.460178][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   76.460445][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   76.460998][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   76.461244][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b250580 RCX: 1ff4000000092eaf
[   76.461530][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b25063c
[   76.461817][   T68] RBP: ff11000007861000 R08: 1fe220000164a0c9 R09: ff11000008e42ed0
[   76.462119][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   76.462394][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   76.462687][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   76.463002][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.463252][   T68] CR2: 00007fa55b9edf98 CR3: 00000000097f9006 CR4: 0000000000771ef0
[   76.463538][   T68] PKRU: 55555554
[   76.463712][   T68] Call Trace:
[   76.463849][   T68]  <TASK>
[   76.463966][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   76.464139][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   76.464280][   T68]  netif_close_many (net/core/dev.c:1804)
[   76.464455][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   76.464643][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   76.464812][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   76.464991][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   76.465163][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   76.465363][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   76.465571][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   76.465755][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   76.465931][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   76.466107][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   76.466310][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   76.466491][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   76.466678][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   76.466849][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   76.467030][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   76.467204][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   76.467376][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   76.467550][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   76.467734][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   76.467913][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   76.468082][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   76.468253][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   76.468425][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   76.468613][   T68]  process_one_work (kernel/workqueue.c:3314)
[   76.468788][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   76.468967][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   76.469142][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   76.469314][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   76.469490][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   76.469677][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   76.469847][   T68]  kthread (kernel/kthread.c:436)
[   76.470002][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   76.470203][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   76.470373][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   76.470550][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   76.470759][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   76.470937][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   76.471112][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   76.473644][   T68] ------------[ cut here ]------------
| [   76.473777][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   76.474022][   T68] Modules linked in: unix_diag
| [   76.474415][   T68] Tainted: [W]=WARN
[   76.474505][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.474678][   T68] Workqueue: netns cleanup_net
[   76.474801][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   76.474964][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   76.475384][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   76.475535][   T68] RAX: 00000000ffffffa6 RBX: ff1100000f903540 RCX: 1ff4000000092ed5
[   76.475722][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f9035fc
[   76.475908][   T68] RBP: ff11000007861000 R08: 1fe2200001f206c1 R09: ff11000008e42ed0
[   76.476089][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   76.476266][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   76.476448][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   76.476659][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.476808][   T68] CR2: 000055a9ce410d5c CR3: 000000000f399003 CR4: 0000000000771ef0
[   76.477000][   T68] PKRU: 55555554
[   76.477088][   T68] Call Trace:
[   76.477182][   T68]  <TASK>
[   76.477244][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   76.477397][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   76.477551][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   76.477682][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   76.477802][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   76.477935][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   76.478056][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   76.478178][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   76.478299][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   76.478421][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   76.478543][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   76.478668][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   76.478787][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   76.478914][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   76.479034][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   76.479155][   T68]  process_one_work (kernel/workqueue.c:3314)
[   76.479278][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   76.479396][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   76.479528][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   76.479654][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   76.479772][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   76.479896][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   76.480014][   T68]  kthread (kernel/kthread.c:436)
[   76.480105][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   76.480252][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   76.480371][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   76.480493][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   76.480647][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   76.480765][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   76.480893][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   76.485458][  T469] ------------[ cut here ]------------
| [   76.485612][  T469] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/469
| [   76.485842][  T469] Modules linked in: unix_diag
| [   76.486245][  T469] Tainted: [W]=WARN
[   76.486343][  T469] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.486509][  T469] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   76.486686][  T469] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   76.487154][  T469] RSP: 0018:ffa0000000ed7a80 EFLAGS: 00010286
[   76.487319][  T469] RAX: 00000000ffffffa6 RBX: ff1100000c8e0740 RCX: 1ff40000001daf16
[   76.487515][  T469] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c8e07fc
[   76.487716][  T469] RBP: ff110000025d4000 R08: 1fe220000191c101 R09: ff11000009b55180
[   76.487914][  T469] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   76.488108][  T469] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000025d4000
[   76.488303][  T469] FS:  00007ff8327da840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   76.488537][  T469] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.488707][  T469] CR2: 00007ff8329dbc20 CR3: 000000000b681005 CR4: 0000000000771ef0
[   76.488908][  T469] PKRU: 55555554
[   76.489009][  T469] Call Trace:
[   76.489105][  T469]  <TASK>
[   76.489172][  T469]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   76.489302][  T469]  ? notifier_call_chain (kernel/notifier.c:85)
[   76.489439][  T469]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   76.489539][  T469]  register_netdevice (net/core/dev.c:11488)
[   76.489681][  T469]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   76.489844][  T469]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   76.489983][  T469]  register_netdev (net/core/dev.c:11552)
[   76.490113][  T469]  loopback_net_init (drivers/net/loopback.c:218)
[   76.490244][  T469]  ops_init (net/core/net_namespace.c:137)
[   76.490344][  T469]  setup_net (net/core/net_namespace.c:446)
[   76.490446][  T469]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   76.490575][  T469]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   76.490712][  T469]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   76.490844][  T469]  copy_net_ns (net/core/net_namespace.c:579)
[   76.490980][  T469]  create_new_namespaces (kernel/nsproxy.c:132)
[   76.491112][  T469]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   76.491244][  T469]  ksys_unshare (kernel/fork.c:3243)
[   76.491373][  T469]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   76.491506][  T469]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   76.491643][  T469]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   76.491776][  T469]  ? __ia32_sys_open (fs/open.c:1374)
[   76.491913][  T469]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   76.492043][  T469]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   76.492175][  T469]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   76.492303][  T469]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   76.492436][  T469]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   76.492568][  T469]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   76.492736][  T469] RIP: 0033:0x7ff832a9cbcb
[   76.492873][  T469] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   76.493342][  T469] RSP: 002b:00007ffdb59205c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   76.493543][  T469] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff832a9cbcb
[   76.493743][  T469] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   76.493943][  T469] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   76.494139][  T469] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdb59227f0
[   76.494333][  T469] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdb5924886
| [   76.498191][  T469] ------------[ cut here ]------------
| [   76.498326][  T469] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/469
| [   76.498554][  T469] Modules linked in: unix_diag
| [   76.498958][  T469] Tainted: [W]=WARN
[   76.499055][  T469] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.499217][  T469] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   76.499384][  T469] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   76.499853][  T469] RSP: 0018:ffa0000000ed7918 EFLAGS: 00010286
[   76.500020][  T469] RAX: 00000000ffffffa6 RBX: ff110000050a83c0 RCX: 1ff40000001daee9
[   76.500214][  T469] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000050a847c
[   76.500405][  T469] RBP: ff11000008b61000 R08: 1fe2200000a15091 R09: ff11000009b55180
[   76.500608][  T469] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   76.500803][  T469] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b61000
[   76.501007][  T469] FS:  00007ff8327da840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   76.501233][  T469] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.501396][  T469] CR2: 00007ff8329dbc20 CR3: 000000000b681005 CR4: 0000000000771ef0
[   76.501602][  T469] PKRU: 55555554
[   76.501699][  T469] Call Trace:
[   76.501796][  T469]  <TASK>
[   76.501864][  T469]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   76.502003][  T469]  ? notifier_call_chain (kernel/notifier.c:85)
[   76.502135][  T469]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   76.502234][  T469]  register_netdevice (net/core/dev.c:11488)
[   76.502365][  T469]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   76.502532][  T469]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   76.502669][  T469]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   76.502800][  T469]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   76.502937][  T469]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   76.503070][  T469]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   76.503200][  T469]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   76.503332][  T469]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   76.503471][  T469]  ops_init (net/core/net_namespace.c:137)
[   76.503571][  T469]  setup_net (net/core/net_namespace.c:446)
[   76.503677][  T469]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   76.503805][  T469]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   76.503941][  T469]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   76.504074][  T469]  copy_net_ns (net/core/net_namespace.c:579)
[   76.504206][  T469]  create_new_namespaces (kernel/nsproxy.c:132)
[   76.504341][  T469]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   76.504475][  T469]  ksys_unshare (kernel/fork.c:3243)
[   76.504621][  T469]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   76.504753][  T469]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   76.504889][  T469]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   76.505020][  T469]  ? __ia32_sys_open (fs/open.c:1374)
[   76.505151][  T469]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   76.505282][  T469]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   76.505414][  T469]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   76.505543][  T469]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   76.505681][  T469]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   76.505811][  T469]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   76.505978][  T469] RIP: 0033:0x7ff832a9cbcb
[   76.506112][  T469] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   76.506579][  T469] RSP: 002b:00007ffdb59205c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   76.506780][  T469] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff832a9cbcb
[   76.506979][  T469] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   76.507173][  T469] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   76.507368][  T469] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdb59227f0
[   76.507564][  T469] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdb5924886
| [   76.511812][  T469] ------------[ cut here ]------------
| [   76.511953][  T469] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/469
| [   76.512183][  T469] Modules linked in: unix_diag
| [   76.512590][  T469] Tainted: [W]=WARN
[   76.512690][  T469] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.512853][  T469] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   76.513027][  T469] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   76.513497][  T469] RSP: 0018:ffa0000000ed78f8 EFLAGS: 00010286
[   76.513666][  T469] RAX: 00000000ffffffa6 RBX: ff1100000e138200 RCX: 1ff40000001daee5
[   76.513862][  T469] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e1382bc
[   76.514068][  T469] RBP: ff11000009024000 R08: 1fe2200001c27059 R09: ff11000009b55180
[   76.514264][  T469] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   76.514462][  T469] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009024000
[   76.514661][  T469] FS:  00007ff8327da840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   76.514894][  T469] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.515058][  T469] CR2: 00007ff8329dbc20 CR3: 000000000b681005 CR4: 0000000000771ef0
[   76.515258][  T469] PKRU: 55555554
[   76.515355][  T469] Call Trace:
[   76.515454][  T469]  <TASK>
[   76.515521][  T469]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   76.515658][  T469]  ? notifier_call_chain (kernel/notifier.c:85)
[   76.515788][  T469]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   76.515891][  T469]  register_netdevice (net/core/dev.c:11488)
[   76.516026][  T469]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   76.516190][  T469]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   76.516322][  T469]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   76.516454][  T469]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   76.516591][  T469]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   76.516724][  T469]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   76.516854][  T469]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   76.516991][  T469]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   76.517130][  T469]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   76.517263][  T469]  vti_init_net (net/ipv4/ip_vti.c:517)
[   76.517395][  T469]  ops_init (net/core/net_namespace.c:137)
[   76.517499][  T469]  setup_net (net/core/net_namespace.c:446)
[   76.517603][  T469]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   76.517734][  T469]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   76.517864][  T469]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   76.518008][  T469]  copy_net_ns (net/core/net_namespace.c:579)
[   76.518140][  T469]  create_new_namespaces (kernel/nsproxy.c:132)
[   76.518273][  T469]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   76.518404][  T469]  ksys_unshare (kernel/fork.c:3243)
[   76.518539][  T469]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   76.518675][  T469]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   76.518806][  T469]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   76.518946][  T469]  ? __ia32_sys_open (fs/open.c:1374)
[   76.519079][  T469]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   76.519210][  T469]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   76.519340][  T469]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   76.519562][  T469]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   76.519698][  T469]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   76.519829][  T469]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   76.520000][  T469] RIP: 0033:0x7ff832a9cbcb
[   76.520231][  T469] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   76.520790][  T469] RSP: 002b:00007ffdb59205c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   76.520992][  T469] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff832a9cbcb
[   76.521188][  T469] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   76.521475][  T469] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   76.521675][  T469] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdb59227f0
[   76.521869][  T469] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdb5924886
| [   76.525946][  T469] ------------[ cut here ]------------
| [   76.526081][  T469] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/469
| [   76.526311][  T469] Modules linked in: unix_diag
| [   76.526712][  T469] Tainted: [W]=WARN
[   76.526809][  T469] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.526978][  T469] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   76.527144][  T469] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   76.527613][  T469] RSP: 0018:ffa0000000ed7a78 EFLAGS: 00010286
[   76.527776][  T469] RAX: 00000000ffffffa6 RBX: ff1100000bf651c0 RCX: 1ff40000001daf15
[   76.527975][  T469] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bf6527c
[   76.528169][  T469] RBP: ff11000002919000 R08: 1fe22000017eca51 R09: ff11000009b55180
[   76.528362][  T469] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   76.528557][  T469] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002919000
[   76.528756][  T469] FS:  00007ff8327da840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   76.528989][  T469] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.529151][  T469] CR2: 00007ff8329dbc20 CR3: 000000000b681005 CR4: 0000000000771ef0
[   76.529345][  T469] PKRU: 55555554
[   76.529445][  T469] Call Trace:
[   76.529541][  T469]  <TASK>
[   76.529615][  T469]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   76.529745][  T469]  ? notifier_call_chain (kernel/notifier.c:85)
[   76.529880][  T469]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   76.529980][  T469]  register_netdevice (net/core/dev.c:11488)
[   76.530111][  T469]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   76.530270][  T469]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   76.530402][  T469]  register_netdev (net/core/dev.c:11552)
[   76.530534][  T469]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   76.530671][  T469]  ops_init (net/core/net_namespace.c:137)
[   76.530772][  T469]  setup_net (net/core/net_namespace.c:446)
[   76.530869][  T469]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   76.531005][  T469]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   76.531135][  T469]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   76.531265][  T469]  copy_net_ns (net/core/net_namespace.c:579)
[   76.531394][  T469]  create_new_namespaces (kernel/nsproxy.c:132)
[   76.531529][  T469]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   76.531665][  T469]  ksys_unshare (kernel/fork.c:3243)
[   76.531793][  T469]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   76.531928][  T469]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   76.532059][  T469]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   76.532190][  T469]  ? __ia32_sys_open (fs/open.c:1374)
[   76.532320][  T469]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   76.532450][  T469]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   76.532580][  T469]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   76.532715][  T469]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   76.532844][  T469]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   76.532979][  T469]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   76.533139][  T469] RIP: 0033:0x7ff832a9cbcb
[   76.533273][  T469] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   76.533743][  T469] RSP: 002b:00007ffdb59205c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   76.533944][  T469] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff832a9cbcb
[   76.534133][  T469] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   76.534416][  T469] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   76.534617][  T469] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdb59227f0
[   76.534808][  T469] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdb5924886
| [   76.539328][  T469] ------------[ cut here ]------------
| [   76.539467][  T469] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/469
| [   76.539700][  T469] Modules linked in: unix_diag
| [   76.540184][  T469] Tainted: [W]=WARN
[   76.540284][  T469] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.540539][  T469] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   76.540714][  T469] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   76.541268][  T469] RSP: 0018:ffa0000000ed7a68 EFLAGS: 00010286
[   76.541435][  T469] RAX: 00000000ffffffa6 RBX: ff110000050a91c0 RCX: 1ff40000001daf13
[   76.541631][  T469] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000050a927c
[   76.541822][  T469] RBP: ff11000009264000 R08: 1fe2200000a15251 R09: ff11000009b55180
[   76.542019][  T469] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   76.542212][  T469] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009264000
[   76.542408][  T469] FS:  00007ff8327da840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   76.542643][  T469] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.542803][  T469] CR2: 00007ff8329dbc20 CR3: 000000000b681005 CR4: 0000000000771ef0
[   76.543006][  T469] PKRU: 55555554
[   76.543104][  T469] Call Trace:
[   76.543201][  T469]  <TASK>
[   76.543268][  T469]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   76.543396][  T469]  ? notifier_call_chain (kernel/notifier.c:85)
[   76.543528][  T469]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   76.543629][  T469]  register_netdevice (net/core/dev.c:11488)
[   76.543761][  T469]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   76.543931][  T469]  register_netdev (net/core/dev.c:11552)
[   76.544063][  T469]  sit_init_net (net/ipv6/sit.c:1860)
[   76.544194][  T469]  ops_init (net/core/net_namespace.c:137)
[   76.544293][  T469]  setup_net (net/core/net_namespace.c:446)
[   76.544391][  T469]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   76.544522][  T469]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   76.544662][  T469]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   76.544796][  T469]  copy_net_ns (net/core/net_namespace.c:579)
[   76.544933][  T469]  create_new_namespaces (kernel/nsproxy.c:132)
[   76.545067][  T469]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   76.545197][  T469]  ksys_unshare (kernel/fork.c:3243)
[   76.545327][  T469]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   76.545459][  T469]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   76.545594][  T469]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   76.545727][  T469]  ? __ia32_sys_open (fs/open.c:1374)
[   76.545860][  T469]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   76.545995][  T469]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   76.546123][  T469]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   76.546250][  T469]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   76.546378][  T469]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   76.546512][  T469]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   76.546677][  T469] RIP: 0033:0x7ff832a9cbcb
[   76.546813][  T469] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   76.547274][  T469] RSP: 002b:00007ffdb59205c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   76.547474][  T469] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff832a9cbcb
[   76.547674][  T469] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   76.547869][  T469] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   76.548067][  T469] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdb59227f0
[   76.548258][  T469] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdb5924886
| [   76.560780][  T469] ------------[ cut here ]------------
| [   76.560921][  T469] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/469
| [   76.561148][  T469] Modules linked in: unix_diag
| [   76.561551][  T469] Tainted: [W]=WARN
[   76.561656][  T469] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.561820][  T469] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   76.561993][  T469] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   76.562456][  T469] RSP: 0018:ffa0000000ed7a78 EFLAGS: 00010286
[   76.562627][  T469] RAX: 00000000ffffffa6 RBX: ff1100000c837c40 RCX: 1ff40000001daf15
[   76.562820][  T469] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c837cfc
[   76.563018][  T469] RBP: ff1100000883c000 R08: 1fe2200001906fa1 R09: ff11000009b55180
[   76.563213][  T469] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   76.563408][  T469] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000883c000
[   76.563610][  T469] FS:  00007ff8327da840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   76.563838][  T469] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.564007][  T469] CR2: 00007ff8329dbc20 CR3: 000000000b681005 CR4: 0000000000771ef0
[   76.564203][  T469] PKRU: 55555554
[   76.564300][  T469] Call Trace:
[   76.564396][  T469]  <TASK>
[   76.564467][  T469]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   76.564601][  T469]  ? notifier_call_chain (kernel/notifier.c:85)
[   76.564731][  T469]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   76.564832][  T469]  register_netdevice (net/core/dev.c:11488)
[   76.564970][  T469]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   76.565131][  T469]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   76.565263][  T469]  register_netdev (net/core/dev.c:11552)
[   76.565393][  T469]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   76.565526][  T469]  ops_init (net/core/net_namespace.c:137)
[   76.565629][  T469]  setup_net (net/core/net_namespace.c:446)
[   76.565728][  T469]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   76.565856][  T469]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   76.565991][  T469]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   76.566123][  T469]  copy_net_ns (net/core/net_namespace.c:579)
[   76.566252][  T469]  create_new_namespaces (kernel/nsproxy.c:132)
[   76.566384][  T469]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   76.566516][  T469]  ksys_unshare (kernel/fork.c:3243)
[   76.566651][  T469]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   76.566780][  T469]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   76.566911][  T469]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   76.567040][  T469]  ? __ia32_sys_open (fs/open.c:1374)
[   76.567171][  T469]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   76.567300][  T469]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   76.567434][  T469]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   76.567563][  T469]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   76.567700][  T469]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   76.567830][  T469]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   76.567998][  T469] RIP: 0033:0x7ff832a9cbcb
[   76.568132][  T469] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   76.568608][  T469] RSP: 002b:00007ffdb59205c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   76.568801][  T469] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff832a9cbcb
[   76.569002][  T469] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   76.569194][  T469] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   76.569387][  T469] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdb59227f0
[   76.569578][  T469] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffdb5924886
| [   76.598071][  T470] ------------[ cut here ]------------
| [   76.598216][  T470] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/470
| [   76.598449][  T470] Modules linked in: unix_diag
| [   76.598853][  T470] Tainted: [W]=WARN
[   76.598954][  T470] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.599115][  T470] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   76.599284][  T470] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   76.600327][  T470] RSP: 0018:ffa0000000fb7020 EFLAGS: 00010286
[   76.600494][  T470] RAX: 00000000ffffffa6 RBX: ff1100000ce29380 RCX: 1ff40000001f6dca
[   76.600691][  T470] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce2943c
[   76.600889][  T470] RBP: ff110000025d4000 R08: 1fe22000019c5289 R09: ff11000005305158
[   76.601079][  T470] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   76.601270][  T470] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   76.601468][  T470] FS:  00007f4d8fb50840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   76.601700][  T470] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.601862][  T470] CR2: 00007f4d8fe201a0 CR3: 000000000f590001 CR4: 0000000000771ef0
[   76.602066][  T470] PKRU: 55555554
[   76.602162][  T470] Call Trace:
[   76.602258][  T470]  <TASK>
[   76.602325][  T470]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   76.602459][  T470]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   76.602558][  T470]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   76.602690][  T470]  __dev_notify_flags (net/core/dev.c:9787)
[   76.602820][  T470]  ? netif_change_name (net/core/dev.c:1495)
[   76.602953][  T470]  ? __dev_change_flags (net/core/dev.c:9752)
[   76.603082][  T470]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   76.603210][  T470]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   76.603340][  T470]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   76.603476][  T470]  netif_change_flags (net/core/dev.c:9820)
[   76.603612][  T470]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   76.603741][  T470]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   76.603872][  T470]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   76.604009][  T470]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   76.604173][  T470]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   76.604304][  T470]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   76.604437][  T470]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   76.604568][  T470]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   76.604704][  T470]  ? __kernel_text_address (kernel/extable.c:79)
[   76.604834][  T470]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   76.604976][  T470]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   76.605105][  T470]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   76.605236][  T470]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   76.605366][  T470]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   76.605498][  T470]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   76.605631][  T470]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   76.605760][  T470]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   76.605895][  T470]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   76.606026][  T470]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   76.606155][  T470]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   76.606288][  T470]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   76.606423][  T470]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   76.606558][  T470]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   76.606697][  T470]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   76.606826][  T470]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   76.606963][  T470]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   76.607092][  T470]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   76.607221][  T470]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   76.607355][  T470]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   76.607487][  T470]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   76.607622][  T470]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   76.607752][  T470]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   76.607888][  T470]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   76.608018][  T470]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   76.608148][  T470]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   76.608279][  T470]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   76.608412][  T470]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   76.608544][  T470]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   76.608680][  T470]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   76.608811][  T470]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   76.608946][  T470]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   76.609076][  T470]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   76.609210][  T470]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   76.609341][  T470]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   76.609476][  T470]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   76.609613][  T470]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   76.609744][  T470]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   76.609879][  T470]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   76.610011][  T470]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   76.610144][  T470]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   76.610279][  T470]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   76.610414][  T470]  ? copy_msghdr_from_user (net/socket.c:2635)
[   76.610545][  T470]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   76.610712][  T470]  ? move_addr_to_kernel (net/socket.c:258)
[   76.610844][  T470]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   76.610980][  T470]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   76.611112][  T470]  ___sys_sendmsg (net/socket.c:2752)
[   76.611244][  T470]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   76.611408][  T470]  ? copy_msghdr_from_user (net/socket.c:2603)
[   76.611552][  T470]  __sys_sendmsg (net/socket.c:2784)
[   76.611689][  T470]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   76.611819][  T470]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   76.611989][  T470]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   76.612119][  T470]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   76.612252][  T470]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   76.612382][  T470]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   76.612515][  T470]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   76.612652][  T470]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   76.612814][  T470] RIP: 0033:0x7f4d8fd8a08e
[   76.612956][  T470] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   76.613423][  T470] RSP: 002b:00007fffc2f46690 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   76.613625][  T470] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4d8fd8a08e
[   76.613819][  T470] RDX: 0000000000000000 RSI: 00007fffc2f46740 RDI: 0000000000000005
[   76.614018][  T470] RBP: 00007fffc2f466a0 R08: 0000000000000000 R09: 0000000000000000
[   76.614213][  T470] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d695
[   76.614408][  T470] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffc2f46e10
| [   81.853976][   T68] ------------[ cut here ]------------
| [   81.854146][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   81.854384][   T68] Modules linked in: unix_diag
| [   81.854804][   T68] Tainted: [W]=WARN
[   81.854899][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   81.855053][   T68] Workqueue: netns cleanup_net
[   81.855177][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   81.855332][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   81.855761][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   81.855916][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c516580 RCX: 1ff4000000092eed
[   81.856090][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c51663c
[   81.856264][   T68] RBP: ff1100000883c000 R08: 1fe22000018a2cc9 R09: ff11000008e42ed0
[   81.856444][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   81.856630][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   81.856810][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   81.857032][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   81.857179][   T68] CR2: 00007f907b45cf98 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   81.857357][   T68] PKRU: 55555554
[   81.857448][   T68] Call Trace:
[   81.857538][   T68]  <TASK>
[   81.857615][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   81.857772][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   81.857929][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   81.858052][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   81.858175][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   81.858294][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   81.858418][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   81.858539][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   81.858670][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   81.858788][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   81.858922][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   81.859040][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   81.859157][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   81.859276][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   81.859398][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   81.859522][   T68]  process_one_work (kernel/workqueue.c:3314)
[   81.859650][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   81.859769][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   81.859898][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   81.860018][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   81.860136][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   81.860256][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   81.860375][   T68]  kthread (kernel/kthread.c:436)
[   81.860467][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   81.860621][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   81.860740][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   81.860866][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   81.861019][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   81.861137][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   81.861256][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   81.863461][   T68] ------------[ cut here ]------------
| [   81.863579][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   81.863824][   T68] Modules linked in: unix_diag
| [   81.864218][   T68] Tainted: [W]=WARN
[   81.864308][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   81.864459][   T68] Workqueue: netns cleanup_net
[   81.864589][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   81.865914][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   81.866417][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   81.866688][   T68] RAX: 00000000ffffffa6 RBX: ff110000050a91c0 RCX: 1ff4000000092eed
[   81.866862][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000050a927c
[   81.867049][   T68] RBP: ff11000009264000 R08: 1fe2200000a15251 R09: ff11000008e42ed0
[   81.867228][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   81.867402][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   81.867591][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   81.867869][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   81.868024][   T68] CR2: 00007f907b45cf98 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   81.868199][   T68] PKRU: 55555554
[   81.868286][   T68] Call Trace:
[   81.868448][   T68]  <TASK>
[   81.868510][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   81.868673][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   81.868818][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   81.869018][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   81.869138][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   81.869256][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   81.869374][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   81.869566][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   81.869693][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   81.869810][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   81.869934][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   81.870123][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   81.870239][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   81.870358][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   81.870478][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   81.870676][   T68]  process_one_work (kernel/workqueue.c:3314)
[   81.870799][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   81.870923][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   81.871044][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   81.871238][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   81.871354][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   81.871474][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   81.871595][   T68]  kthread (kernel/kthread.c:436)
[   81.871757][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   81.871907][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   81.872030][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   81.872147][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   81.872363][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   81.872483][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   81.872620][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   81.879186][   T68] ------------[ cut here ]------------
| [   81.879308][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   81.879544][   T68] Modules linked in: unix_diag
| [   81.880414][   T68] Tainted: [W]=WARN
[   81.880503][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   81.880697][   T68] Workqueue: netns cleanup_net
[   81.880821][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   81.880982][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   81.881400][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   81.881551][   T68] RAX: 00000000ffffffa6 RBX: ff1100000a2c4740 RCX: 1ff4000000092eed
[   81.881775][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2c47fc
[   81.881966][   T68] RBP: ff11000002919000 R08: 1fe2200001458901 R09: ff11000008e42ed0
[   81.882144][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   81.882365][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   81.882549][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   81.882802][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   81.882955][   T68] CR2: 00007f907b45cf98 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   81.883136][   T68] PKRU: 55555554
[   81.883224][   T68] Call Trace:
[   81.883311][   T68]  <TASK>
[   81.883375][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   81.883531][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   81.883728][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   81.883849][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   81.883976][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   81.884095][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   81.884219][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   81.884338][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   81.884461][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   81.884578][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   81.884745][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   81.884867][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   81.884999][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   81.885124][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   81.885241][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   81.885359][   T68]  process_one_work (kernel/workqueue.c:3314)
[   81.885482][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   81.885646][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   81.885769][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   81.885900][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   81.886023][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   81.886142][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   81.886262][   T68]  kthread (kernel/kthread.c:436)
[   81.886352][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   81.886502][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   81.886665][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   81.886782][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   81.886934][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   81.887053][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   81.887171][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   81.894374][   T68] ------------[ cut here ]------------
| [   81.894542][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   81.894835][   T68] Modules linked in: unix_diag
| [   81.895329][   T68] Tainted: [W]=WARN
[   81.895471][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   81.895680][   T68] Workqueue: netns cleanup_net
[   81.895853][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   81.896064][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   81.896538][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   81.896746][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c01e900 RCX: 1ff4000000092eed
[   81.896977][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c01e9bc
[   81.897198][   T68] RBP: ff11000009024000 R08: 1fe2200001803d39 R09: ff11000008e42ed0
[   81.897419][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   81.897654][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   81.897876][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   81.898135][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   81.898329][   T68] CR2: 000055915d4e5cf8 CR3: 000000004d34d002 CR4: 0000000000771ef0
[   81.898560][   T68] PKRU: 55555554
[   81.898706][   T68] Call Trace:
[   81.898841][   T68]  <TASK>
[   81.898957][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   81.899155][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   81.899348][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   81.899520][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   81.899697][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   81.899862][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   81.900037][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   81.900206][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   81.900374][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   81.900543][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   81.900725][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   81.900898][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   81.901063][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   81.901230][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   81.901396][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   81.901570][   T68]  process_one_work (kernel/workqueue.c:3314)
[   81.901752][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   81.901954][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   81.902125][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   81.902292][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   81.902461][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   81.902643][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   81.902808][   T68]  kthread (kernel/kthread.c:436)
[   81.902981][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   81.903174][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   81.903368][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   81.903542][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   81.903749][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   81.903923][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   81.904091][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   81.906533][   T68] ------------[ cut here ]------------
| [   81.906716][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   81.907012][   T68] Modules linked in: unix_diag
| [   81.907494][   T68] Tainted: [W]=WARN
[   81.907726][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   81.908016][   T68] Workqueue: netns cleanup_net
[   81.908292][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   81.908610][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   81.909184][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   81.909479][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cd6d1c0 RCX: 1ff4000000092eed
[   81.909806][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cd6d27c
[   81.910124][   T68] RBP: ff11000008b61000 R08: 1fe22000019ada51 R09: ff11000008e42ed0
[   81.910439][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   81.910669][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   81.910899][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   81.911151][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   81.911347][   T68] CR2: 000055915d4e5cf8 CR3: 000000004d34d002 CR4: 0000000000771ef0
[   81.911575][   T68] PKRU: 55555554
[   81.911722][   T68] Call Trace:
[   81.911855][   T68]  <TASK>
[   81.911970][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   81.912171][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   81.912364][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   81.912540][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   81.912722][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   81.912886][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   81.913064][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   81.913230][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   81.913397][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   81.913569][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   81.913753][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   81.913929][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   81.914094][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   81.914261][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   81.914429][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   81.914609][   T68]  process_one_work (kernel/workqueue.c:3314)
[   81.914777][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   81.914950][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   81.915123][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   81.915290][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   81.915459][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   81.915636][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   81.915803][   T68]  kthread (kernel/kthread.c:436)
[   81.915947][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   81.916140][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   81.916305][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   81.916484][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   81.916764][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   81.916935][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   81.917099][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   81.928085][  T486] ------------[ cut here ]------------
| [   81.928229][  T486] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/486
| [   81.928459][  T486] Modules linked in: unix_diag
| [   81.928869][  T486] Tainted: [W]=WARN
[   81.928975][  T486] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   81.929137][  T486] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   81.929307][  T486] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   81.929781][  T486] RSP: 0018:ffa0000001007a80 EFLAGS: 00010286
[   81.929952][  T486] RAX: 00000000ffffffa6 RBX: ff1100000a2c5700 RCX: 1ff4000000200f16
[   81.930146][  T486] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a2c57bc
[   81.930339][  T486] RBP: ff11000007869000 R08: 1fe2200001458af9 R09: ff11000005305180
[   81.930539][  T486] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   81.930741][  T486] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007869000
[   81.930940][  T486] FS:  00007fcf27f52840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   81.931169][  T486] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   81.931333][  T486] CR2: 00007fcf28159430 CR3: 0000000009a8d004 CR4: 0000000000771ef0
[   81.931535][  T486] PKRU: 55555554
[   81.931638][  T486] Call Trace:
[   81.931737][  T486]  <TASK>
[   81.931804][  T486]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   81.931940][  T486]  ? notifier_call_chain (kernel/notifier.c:85)
[   81.932071][  T486]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   81.932171][  T486]  register_netdevice (net/core/dev.c:11488)
[   81.932303][  T486]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   81.932471][  T486]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   81.932609][  T486]  register_netdev (net/core/dev.c:11552)
[   81.932738][  T486]  loopback_net_init (drivers/net/loopback.c:218)
[   81.932870][  T486]  ops_init (net/core/net_namespace.c:137)
[   81.932976][  T486]  setup_net (net/core/net_namespace.c:446)
[   81.933074][  T486]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   81.933204][  T486]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   81.933337][  T486]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   81.933473][  T486]  copy_net_ns (net/core/net_namespace.c:579)
[   81.933609][  T486]  create_new_namespaces (kernel/nsproxy.c:132)
[   81.933742][  T486]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   81.933872][  T486]  ksys_unshare (kernel/fork.c:3243)
[   81.934009][  T486]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   81.934142][  T486]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   81.934273][  T486]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   81.934407][  T486]  ? __ia32_sys_open (fs/open.c:1374)
[   81.934541][  T486]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   81.934677][  T486]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   81.934809][  T486]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   81.934943][  T486]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   81.935073][  T486]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   81.935203][  T486]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   81.935368][  T486] RIP: 0033:0x7fcf28214bcb
[   81.935509][  T486] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   81.935985][  T486] RSP: 002b:00007fff4a77e308 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   81.936184][  T486] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcf28214bcb
[   81.936380][  T486] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   81.936578][  T486] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   81.936778][  T486] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff4a780530
[   81.936978][  T486] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff4a780886
| [   81.941186][  T486] ------------[ cut here ]------------
| [   81.941322][  T486] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/486
| [   81.941552][  T486] Modules linked in: unix_diag
| [   81.941953][  T486] Tainted: [W]=WARN
[   81.942051][  T486] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   81.942213][  T486] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   81.942383][  T486] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   81.942850][  T486] RSP: 0018:ffa0000001007918 EFLAGS: 00010286
[   81.943019][  T486] RAX: 00000000ffffffa6 RBX: ff1100000a1cb700 RCX: 1ff4000000200ee9
[   81.943214][  T486] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000a1cb7bc
[   81.943409][  T486] RBP: ff1100000a844000 R08: 1fe22000014396f9 R09: ff11000005305180
[   81.943609][  T486] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   81.943806][  T486] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a844000
[   81.944007][  T486] FS:  00007fcf27f52840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   81.944233][  T486] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   81.944396][  T486] CR2: 00007fcf28159430 CR3: 0000000009a8d004 CR4: 0000000000771ef0
[   81.944598][  T486] PKRU: 55555554
[   81.944695][  T486] Call Trace:
[   81.944791][  T486]  <TASK>
[   81.944860][  T486]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   81.945000][  T486]  ? notifier_call_chain (kernel/notifier.c:85)
[   81.945131][  T486]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   81.945230][  T486]  register_netdevice (net/core/dev.c:11488)
[   81.945361][  T486]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   81.945526][  T486]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   81.945661][  T486]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   81.945791][  T486]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   81.945929][  T486]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   81.946061][  T486]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   81.946192][  T486]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   81.946324][  T486]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   81.946458][  T486]  ops_init (net/core/net_namespace.c:137)
[   81.946558][  T486]  setup_net (net/core/net_namespace.c:446)
[   81.946660][  T486]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   81.946791][  T486]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   81.946925][  T486]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   81.947057][  T486]  copy_net_ns (net/core/net_namespace.c:579)
[   81.947188][  T486]  create_new_namespaces (kernel/nsproxy.c:132)
[   81.947321][  T486]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   81.947453][  T486]  ksys_unshare (kernel/fork.c:3243)
[   81.947589][  T486]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   81.947721][  T486]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   81.947851][  T486]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   81.947988][  T486]  ? __ia32_sys_open (fs/open.c:1374)
[   81.948119][  T486]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   81.948248][  T486]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   81.948377][  T486]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   81.948512][  T486]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   81.948646][  T486]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   81.948777][  T486]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   81.948943][  T486] RIP: 0033:0x7fcf28214bcb
[   81.949077][  T486] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   81.949540][  T486] RSP: 002b:00007fff4a77e308 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   81.949743][  T486] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcf28214bcb
[   81.949941][  T486] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   81.950133][  T486] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   81.950325][  T486] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff4a780530
[   81.950522][  T486] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff4a780886
| [   81.954783][  T486] ------------[ cut here ]------------
| [   81.954925][  T486] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/486
| [   81.955158][  T486] Modules linked in: unix_diag
| [   81.955558][  T486] Tainted: [W]=WARN
[   81.955661][  T486] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   81.955826][  T486] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   81.956005][  T486] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   81.956472][  T486] RSP: 0018:ffa00000010078f8 EFLAGS: 00010286
[   81.956644][  T486] RAX: 00000000ffffffa6 RBX: ff1100000bdfaac0 RCX: 1ff4000000200ee5
[   81.956841][  T486] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bdfab7c
[   81.957043][  T486] RBP: ff11000009e14000 R08: 1fe22000017bf571 R09: ff11000005305180
[   81.957238][  T486] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   81.957437][  T486] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009e14000
[   81.957639][  T486] FS:  00007fcf27f52840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   81.957869][  T486] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   81.958041][  T486] CR2: 00007fcf28159430 CR3: 0000000009a8d004 CR4: 0000000000771ef0
[   81.958237][  T486] PKRU: 55555554
[   81.958335][  T486] Call Trace:
[   81.958436][  T486]  <TASK>
[   81.958503][  T486]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   81.958641][  T486]  ? notifier_call_chain (kernel/notifier.c:85)
[   81.958772][  T486]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   81.958873][  T486]  register_netdevice (net/core/dev.c:11488)
[   81.959012][  T486]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   81.959174][  T486]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   81.959308][  T486]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   81.959442][  T486]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   81.959573][  T486]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   81.959713][  T486]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   81.959846][  T486]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   81.959984][  T486]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   81.960116][  T486]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   81.960250][  T486]  vti_init_net (net/ipv4/ip_vti.c:517)
[   81.960382][  T486]  ops_init (net/core/net_namespace.c:137)
[   81.960485][  T486]  setup_net (net/core/net_namespace.c:446)
[   81.960591][  T486]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   81.960722][  T486]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   81.960853][  T486]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   81.960992][  T486]  copy_net_ns (net/core/net_namespace.c:579)
[   81.961125][  T486]  create_new_namespaces (kernel/nsproxy.c:132)
[   81.961260][  T486]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   81.961395][  T486]  ksys_unshare (kernel/fork.c:3243)
[   81.961530][  T486]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   81.961665][  T486]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   81.961796][  T486]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   81.961932][  T486]  ? __ia32_sys_open (fs/open.c:1374)
[   81.962068][  T486]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   81.962199][  T486]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   81.962330][  T486]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   81.962466][  T486]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   81.962601][  T486]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   81.962731][  T486]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   81.962896][  T486] RIP: 0033:0x7fcf28214bcb
[   81.963036][  T486] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   81.963506][  T486] RSP: 002b:00007fff4a77e308 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   81.963710][  T486] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcf28214bcb
[   81.963913][  T486] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   81.964107][  T486] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   81.964307][  T486] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff4a780530
[   81.964507][  T486] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff4a780886
| [   81.966083][   T68] ------------[ cut here ]------------
| [   81.966255][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   81.966549][   T68] Modules linked in: unix_diag
| [   81.967067][   T68] Tainted: [W]=WARN
[   81.967210][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   81.967411][   T68] Workqueue: netns cleanup_net
[   81.967606][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   81.967813][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   81.968307][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   81.968516][   T68] RAX: 00000000ffffffa6 RBX: ff11000004e30ac0 RCX: 1ff4000000092eaf
[   81.968757][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004e30b7c
[   81.968993][   T68] RBP: ff110000025d4000 R08: 1fe22000009c6171 R09: ff11000008e42ed0
[   81.969220][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   81.969456][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   81.969703][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   81.969968][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   81.970169][   T68] CR2: 000055915d4e5cf8 CR3: 000000004d34d002 CR4: 0000000000771ef0
[   81.970403][   T68] PKRU: 55555554
[   81.970549][   T68] Call Trace:
[   81.970700][   T68]  <TASK>
[   81.970812][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   81.970996][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   81.971140][   T68]  netif_close_many (net/core/dev.c:1804)
[   81.971310][   T68]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   81.971488][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   81.971675][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   81.971880][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   81.972093][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   81.972264][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   81.972434][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   81.972618][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   81.972820][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   81.973084][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   81.973258][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   81.973433][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   81.973617][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   81.973867][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   81.974049][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   81.974219][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   81.974393][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   81.974665][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   81.974834][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   81.975014][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   81.975183][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   81.975435][   T68]  process_one_work (kernel/workqueue.c:3314)
[   81.975623][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   81.975793][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   81.975981][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   81.976231][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   81.976401][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   81.976595][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   81.976765][   T68]  kthread (kernel/kthread.c:436)
[   81.976911][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   81.977189][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   81.977360][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   81.977541][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   81.977832][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   81.978014][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   81.978188][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   81.981254][   T68] ------------[ cut here ]------------
| [   81.981421][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   81.982140][   T68] Modules linked in: unix_diag
| [   81.982751][   T68] Tainted: [W]=WARN
[   81.982938][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   81.983178][   T68] Workqueue: netns cleanup_net
[   81.983356][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   81.983562][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   81.984052][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   81.984248][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cda78c0 RCX: 1ff4000000092ed5
[   81.984479][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cda797c
[   81.984715][   T68] RBP: ff110000025d4000 R08: 1fe22000019b4f31 R09: ff11000008e42ed0
[   81.984949][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   81.985170][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   81.985393][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   81.985664][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   81.985861][   T68] CR2: 000055915d4e5cf8 CR3: 000000004d34d002 CR4: 0000000000771ef0
[   81.986093][   T68] PKRU: 55555554
[   81.986229][   T68] Call Trace:
[   81.986363][   T68]  <TASK>
[   81.986480][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   81.986691][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   81.986896][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   81.987069][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   81.987236][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   81.987401][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   81.987575][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   81.987757][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   81.987935][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   81.988102][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   81.988272][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   81.988445][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   81.988625][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   81.988793][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   81.988965][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   81.989134][   T68]  process_one_work (kernel/workqueue.c:3314)
[   81.989303][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   81.989477][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   81.989664][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   81.989832][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   81.990007][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   81.990173][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   81.990339][   T68]  kthread (kernel/kthread.c:436)
[   81.990483][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   81.990690][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   81.990856][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   81.991104][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   81.991298][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   81.991470][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   81.991652][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   82.011145][  T486] ------------[ cut here ]------------
| [   82.011293][  T486] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/486
| [   82.011523][  T486] Modules linked in: unix_diag
| [   82.011942][  T486] Tainted: [W]=WARN
[   82.012041][  T486] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   82.012226][  T486] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   82.012399][  T486] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   82.012873][  T486] RSP: 0018:ffa0000001007a78 EFLAGS: 00010286
[   82.013042][  T486] RAX: 00000000ffffffa6 RBX: ff1100000bcfcac0 RCX: 1ff4000000200f15
[   82.013237][  T486] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bcfcb7c
[   82.013435][  T486] RBP: ff1100000a8f4000 R08: 1fe220000179f971 R09: ff11000005305180
[   82.013666][  T486] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   82.013861][  T486] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a8f4000
[   82.014066][  T486] FS:  00007fcf27f52840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   82.014295][  T486] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   82.014464][  T486] CR2: 0000559ee4a57d5c CR3: 0000000009a8d002 CR4: 0000000000771ef0
[   82.014664][  T486] PKRU: 55555554
[   82.014761][  T486] Call Trace:
[   82.014858][  T486]  <TASK>
[   82.014931][  T486]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   82.015064][  T486]  ? notifier_call_chain (kernel/notifier.c:85)
[   82.015195][  T486]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   82.015295][  T486]  register_netdevice (net/core/dev.c:11488)
[   82.015432][  T486]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   82.015596][  T486]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   82.015730][  T486]  register_netdev (net/core/dev.c:11552)
[   82.015862][  T486]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   82.016002][  T486]  ops_init (net/core/net_namespace.c:137)
[   82.016101][  T486]  setup_net (net/core/net_namespace.c:446)
[   82.016200][  T486]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   82.016332][  T486]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   82.016465][  T486]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   82.016603][  T486]  copy_net_ns (net/core/net_namespace.c:579)
[   82.016735][  T486]  create_new_namespaces (kernel/nsproxy.c:132)
[   82.016868][  T486]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   82.017007][  T486]  ksys_unshare (kernel/fork.c:3243)
[   82.017137][  T486]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   82.017269][  T486]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   82.017399][  T486]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   82.017534][  T486]  ? __ia32_sys_open (fs/open.c:1374)
[   82.017671][  T486]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   82.017801][  T486]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   82.017935][  T486]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   82.018066][  T486]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   82.018195][  T486]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   82.018325][  T486]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   82.018486][  T486] RIP: 0033:0x7fcf28214bcb
[   82.018628][  T486] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   82.019098][  T486] RSP: 002b:00007fff4a77e308 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   82.019295][  T486] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcf28214bcb
[   82.019494][  T486] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   82.019694][  T486] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   82.019895][  T486] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff4a780530
[   82.020090][  T486] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff4a780886
| [   82.024189][  T486] ------------[ cut here ]------------
| [   82.024329][  T486] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/486
| [   82.024560][  T486] Modules linked in: unix_diag
| [   82.024971][  T486] Tainted: [W]=WARN
[   82.025072][  T486] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   82.025237][  T486] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   82.025409][  T486] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   82.025883][  T486] RSP: 0018:ffa0000001007a68 EFLAGS: 00010286
[   82.026054][  T486] RAX: 00000000ffffffa6 RBX: ff1100000cd6ce40 RCX: 1ff4000000200f13
[   82.026251][  T486] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cd6cefc
[   82.026449][  T486] RBP: ff1100000a9a1000 R08: 1fe22000019ad9e1 R09: ff11000005305180
[   82.026650][  T486] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   82.026846][  T486] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a9a1000
[   82.027047][  T486] FS:  00007fcf27f52840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   82.027277][  T486] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   82.027445][  T486] CR2: 0000559ee4a57d5c CR3: 0000000009a8d002 CR4: 0000000000771ef0
[   82.027648][  T486] PKRU: 55555554
[   82.027748][  T486] Call Trace:
[   82.027845][  T486]  <TASK>
[   82.027921][  T486]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   82.028052][  T486]  ? notifier_call_chain (kernel/notifier.c:85)
[   82.028183][  T486]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   82.028282][  T486]  register_netdevice (net/core/dev.c:11488)
[   82.028416][  T486]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   82.028588][  T486]  register_netdev (net/core/dev.c:11552)
[   82.028718][  T486]  sit_init_net (net/ipv6/sit.c:1860)
[   82.028851][  T486]  ops_init (net/core/net_namespace.c:137)
[   82.028955][  T486]  setup_net (net/core/net_namespace.c:446)
[   82.029054][  T486]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   82.029182][  T486]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   82.029311][  T486]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   82.029449][  T486]  copy_net_ns (net/core/net_namespace.c:579)
[   82.029586][  T486]  create_new_namespaces (kernel/nsproxy.c:132)
[   82.029721][  T486]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   82.029853][  T486]  ksys_unshare (kernel/fork.c:3243)
[   82.029989][  T486]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   82.030118][  T486]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   82.030249][  T486]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   82.030379][  T486]  ? __ia32_sys_open (fs/open.c:1374)
[   82.030517][  T486]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   82.030654][  T486]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   82.030784][  T486]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   82.030918][  T486]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   82.031048][  T486]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   82.031179][  T486]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   82.031340][  T486] RIP: 0033:0x7fcf28214bcb
[   82.031478][  T486] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   82.031956][  T486] RSP: 002b:00007fff4a77e308 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   82.032153][  T486] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcf28214bcb
[   82.032348][  T486] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   82.032547][  T486] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   82.032746][  T486] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff4a780530
[   82.032947][  T486] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff4a780886
| [   82.037226][  T486] ------------[ cut here ]------------
| [   82.037364][  T486] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/486
| [   82.037598][  T486] Modules linked in: unix_diag
| [   82.038005][  T486] Tainted: [W]=WARN
[   82.038104][  T486] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   82.038267][  T486] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   82.038440][  T486] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   82.038916][  T486] RSP: 0018:ffa0000001007a78 EFLAGS: 00010286
[   82.039082][  T486] RAX: 00000000ffffffa6 RBX: ff1100000cd6d000 RCX: 1ff4000000200f15
[   82.039278][  T486] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cd6d0bc
[   82.039477][  T486] RBP: ff11000008c29000 R08: 1fe22000019ada19 R09: ff11000005305180
[   82.039678][  T486] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   82.039876][  T486] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008c29000
[   82.040077][  T486] FS:  00007fcf27f52840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   82.040307][  T486] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   82.040474][  T486] CR2: 0000559ee4a57d5c CR3: 0000000009a8d002 CR4: 0000000000771ef0
[   82.040678][  T486] PKRU: 55555554
[   82.040777][  T486] Call Trace:
[   82.040875][  T486]  <TASK>
[   82.040949][  T486]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   82.041080][  T486]  ? notifier_call_chain (kernel/notifier.c:85)
[   82.041211][  T486]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   82.041311][  T486]  register_netdevice (net/core/dev.c:11488)
[   82.041447][  T486]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   82.041617][  T486]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   82.041751][  T486]  register_netdev (net/core/dev.c:11552)
[   82.041883][  T486]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   82.042020][  T486]  ops_init (net/core/net_namespace.c:137)
[   82.042121][  T486]  setup_net (net/core/net_namespace.c:446)
[   82.042221][  T486]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   82.042352][  T486]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   82.042486][  T486]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   82.042623][  T486]  copy_net_ns (net/core/net_namespace.c:579)
[   82.042755][  T486]  create_new_namespaces (kernel/nsproxy.c:132)
[   82.042897][  T486]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   82.043033][  T486]  ksys_unshare (kernel/fork.c:3243)
[   82.043165][  T486]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   82.043296][  T486]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   82.043432][  T486]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   82.043564][  T486]  ? __ia32_sys_open (fs/open.c:1374)
[   82.043725][  T486]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   82.043855][  T486]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   82.043989][  T486]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   82.044119][  T486]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   82.044251][  T486]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   82.044382][  T486]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   82.044547][  T486] RIP: 0033:0x7fcf28214bcb
[   82.044688][  T486] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   82.045159][  T486] RSP: 002b:00007fff4a77e308 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   82.045357][  T486] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fcf28214bcb
[   82.045552][  T486] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   82.045752][  T486] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   82.045953][  T486] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff4a780530
[   82.046151][  T486] R13: 0000000000000001 R14: 0000000000000003 R15: 00007fff4a780886
| [   82.071693][  T487] ------------[ cut here ]------------
| [   82.071834][  T487] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/487
| [   82.072063][  T487] Modules linked in: unix_diag
| [   82.072464][  T487] Tainted: [W]=WARN
[   82.072561][  T487] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   82.073163][  T487] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   82.073332][  T487] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   82.073802][  T487] RSP: 0018:ffa0000001047020 EFLAGS: 00010286
[   82.073972][  T487] RAX: 00000000ffffffa6 RBX: ff1100000b53dc40 RCX: 1ff4000000208dca
[   82.074166][  T487] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b53dcfc
[   82.074358][  T487] RBP: ff11000007869000 R08: 1fe22000016a7ba1 R09: ff11000005300b58
[   82.074551][  T487] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   82.074750][  T487] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   82.074949][  T487] FS:  00007f54317f3840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   82.075172][  T487] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   82.075335][  T487] CR2: 000000002de54988 CR3: 000000000c566006 CR4: 0000000000771ef0
[   82.075533][  T487] PKRU: 55555554
[   82.075635][  T487] Call Trace:
[   82.075732][  T487]  <TASK>
[   82.075799][  T487]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   82.075936][  T487]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   82.076036][  T487]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   82.076163][  T487]  __dev_notify_flags (net/core/dev.c:9787)
[   82.076296][  T487]  ? netif_change_name (net/core/dev.c:1495)
[   82.076428][  T487]  ? __dev_change_flags (net/core/dev.c:9752)
[   82.076558][  T487]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   82.076690][  T487]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   82.076820][  T487]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   82.076957][  T487]  netif_change_flags (net/core/dev.c:9820)
[   82.077086][  T487]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   82.077218][  T487]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   82.077349][  T487]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   82.077482][  T487]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   82.077649][  T487]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   82.077778][  T487]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   82.077914][  T487]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   82.078043][  T487]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   82.078174][  T487]  ? __kernel_text_address (kernel/extable.c:79)
[   82.078303][  T487]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   82.078436][  T487]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   82.078564][  T487]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   82.078701][  T487]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   82.078831][  T487]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   82.078966][  T487]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   82.079095][  T487]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   82.079225][  T487]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   82.079353][  T487]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   82.079483][  T487]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   82.079618][  T487]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   82.079749][  T487]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   82.079881][  T487]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   82.080021][  T487]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   82.080152][  T487]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   82.080280][  T487]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   82.080413][  T487]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   82.080542][  T487]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   82.080682][  T487]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   82.080814][  T487]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   82.080947][  T487]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   82.081076][  T487]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   82.081206][  T487]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   82.081336][  T487]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   82.081468][  T487]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   82.081601][  T487]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   82.081730][  T487]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   82.081858][  T487]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   82.081996][  T487]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   82.082126][  T487]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   82.082256][  T487]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   82.082385][  T487]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   82.082516][  T487]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   82.082654][  T487]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   82.082782][  T487]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   82.082920][  T487]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   82.083053][  T487]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   82.083184][  T487]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   82.083314][  T487]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   82.083449][  T487]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   82.083587][  T487]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   82.083719][  T487]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   82.083850][  T487]  ? copy_msghdr_from_user (net/socket.c:2635)
[   82.083985][  T487]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   82.084146][  T487]  ? move_addr_to_kernel (net/socket.c:258)
[   82.084277][  T487]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   82.084407][  T487]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   82.084540][  T487]  ___sys_sendmsg (net/socket.c:2752)
[   82.084674][  T487]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   82.084835][  T487]  ? copy_msghdr_from_user (net/socket.c:2603)
[   82.084983][  T487]  __sys_sendmsg (net/socket.c:2784)
[   82.085115][  T487]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   82.085244][  T487]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   82.085408][  T487]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   82.085539][  T487]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   82.085675][  T487]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   82.085804][  T487]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   82.085937][  T487]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   82.086070][  T487]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   82.086230][  T487] RIP: 0033:0x7f5431a2d08e
[   82.086364][  T487] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   82.086829][  T487] RSP: 002b:00007ffd460f8c00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   82.087032][  T487] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5431a2d08e
[   82.087226][  T487] RDX: 0000000000000000 RSI: 00007ffd460f8cb0 RDI: 0000000000000005
[   82.087421][  T487] RBP: 00007ffd460f8c10 R08: 0000000000000000 R09: 0000000000000000
[   82.087619][  T487] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d69b
[   82.087813][  T487] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd460f9380
| [   87.324090][   T68] ------------[ cut here ]------------
| [   87.324290][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.324600][   T68] Modules linked in: unix_diag
| [   87.325094][   T68] Tainted: [W]=WARN
[   87.325230][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.325427][   T68] Workqueue: netns cleanup_net
[   87.325615][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.325822][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.326294][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.326498][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c8e0c80 RCX: 1ff4000000092eed
[   87.326813][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c8e0d3c
[   87.327094][   T68] RBP: ff11000008c29000 R08: 1fe220000191c1a9 R09: ff11000008e42ed0
[   87.327367][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.327635][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.327859][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   87.328127][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.328321][   T68] CR2: 00007f098e3c9430 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   87.328553][   T68] PKRU: 55555554
[   87.328697][   T68] Call Trace:
[   87.328832][   T68]  <TASK>
[   87.328948][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.329148][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.329341][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.329514][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.329693][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.329858][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.330034][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.330202][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.330370][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.330543][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.330727][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.330893][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.331064][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.331231][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.331396][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.331574][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.331786][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.331961][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.332133][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.332301][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.332475][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.332656][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.332820][   T68]  kthread (kernel/kthread.c:436)
[   87.332966][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.333160][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.333327][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.333504][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.333741][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.333928][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.334095][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.336817][   T68] ------------[ cut here ]------------
| [   87.336983][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.337258][   T68] Modules linked in: unix_diag
| [   87.337965][   T68] Tainted: [W]=WARN
[   87.338163][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.338489][   T68] Workqueue: netns cleanup_net
[   87.338725][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.338979][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.339731][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.339944][   T68] RAX: 00000000ffffffa6 RBX: ff1100000f6e1380 RCX: 1ff4000000092eed
[   87.340235][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f6e143c
[   87.340540][   T68] RBP: ff1100000a9a1000 R08: 1fe2200001edc289 R09: ff11000008e42ed0
[   87.340773][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.341073][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.341308][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   87.341567][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.341777][   T68] CR2: 00007f098e3c9430 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   87.342008][   T68] PKRU: 55555554
[   87.342144][   T68] Call Trace:
[   87.342279][   T68]  <TASK>
[   87.342387][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.342602][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.342795][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.342968][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.343134][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.343298][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.343545][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.343724][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.343890][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.344064][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.344373][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.344545][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.344720][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.344888][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.345134][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.345302][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.345479][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.345657][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.345898][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.346075][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.346240][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.346408][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.346692][   T68]  kthread (kernel/kthread.c:436)
[   87.346828][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.347032][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.347199][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.347367][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.347568][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.347746][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.347920][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.351018][   T68] ------------[ cut here ]------------
| [   87.351182][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   87.351466][   T68] Modules linked in: unix_diag
| [   87.352191][   T68] Tainted: [W]=WARN
[   87.352370][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.352628][   T68] Workqueue: netns cleanup_net
[   87.352850][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.353109][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.353638][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.353913][   T68] RAX: 00000000ffffffa6 RBX: ff1100000f902040 RCX: 1ff4000000092eed
[   87.354203][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f9020fc
[   87.354475][   T68] RBP: ff1100000a8f4000 R08: 1fe2200001f20421 R09: ff11000008e42ed0
[   87.354754][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.355025][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.355296][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   87.355614][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.355853][   T68] CR2: 00007f098e3c9430 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   87.356137][   T68] PKRU: 55555554
[   87.356315][   T68] Call Trace:
[   87.356497][   T68]  <TASK>
[   87.356661][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.356912][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.357221][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.357440][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.357665][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.357875][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.358091][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.358302][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.358550][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.358770][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.358990][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.359232][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.359519][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.359796][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.360132][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.360545][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.360818][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.361083][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.361426][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.361687][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.361862][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.362109][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.362277][   T68]  kthread (kernel/kthread.c:436)
[   87.362495][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.362704][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.362869][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.363041][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.363306][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.363480][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.363663][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.366432][   T68] ------------[ cut here ]------------
| [   87.366565][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   87.366867][   T68] Modules linked in: unix_diag
| [   87.367266][   T68] Tainted: [W]=WARN
[   87.367354][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.367504][   T68] Workqueue: netns cleanup_net
[   87.367680][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.367833][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.368330][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.368480][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b250c80 RCX: 1ff4000000092eed
[   87.368706][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b250d3c
[   87.368881][   T68] RBP: ff11000009e14000 R08: 1fe220000164a1a9 R09: ff11000008e42ed0
[   87.369109][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   87.369282][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.369462][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   87.369719][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.369867][   T68] CR2: 00007fc459f72ac8 CR3: 000000004d34d001 CR4: 0000000000771ef0
[   87.370051][   T68] PKRU: 55555554
[   87.370141][   T68] Call Trace:
[   87.370227][   T68]  <TASK>
[   87.370289][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.370443][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.370634][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.370751][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.370873][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.370997][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.371117][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.371236][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.371354][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.371472][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.371611][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.371728][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.371847][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.371973][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.372157][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.372276][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.372397][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.372518][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.372647][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.372765][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.372887][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.373010][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.373124][   T68]  kthread (kernel/kthread.c:436)
[   87.373210][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.373356][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.373480][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.373675][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.373824][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.373947][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.374062][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.376099][   T68] ------------[ cut here ]------------
| [   87.376236][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.376474][   T68] Modules linked in: unix_diag
| [   87.377702][   T68] Tainted: [W]=WARN
[   87.377794][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.377943][   T68] Workqueue: netns cleanup_net
[   87.378064][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.378215][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.378731][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   87.378881][   T68] RAX: 00000000ffffffa6 RBX: ff1100000d538e40 RCX: 1ff4000000092eed
[   87.379063][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000d538efc
[   87.379236][   T68] RBP: ff1100000a844000 R08: 1fe2200001aa71e1 R09: ff11000008e42ed0
[   87.379415][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.379668][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.379849][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   87.380060][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.380206][   T68] CR2: 0000562b0c651d5c CR3: 00000000134df001 CR4: 0000000000771ef0
[   87.380381][   T68] PKRU: 55555554
[   87.380473][   T68] Call Trace:
[   87.380559][   T68]  <TASK>
[   87.380701][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.380848][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.381001][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   87.381120][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   87.381238][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.381354][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   87.381474][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.381654][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   87.381774][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.381889][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.382019][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.382143][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.382258][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.382376][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.382500][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.382693][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.382813][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.382937][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.383061][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.383179][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.383296][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.383417][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.383534][   T68]  kthread (kernel/kthread.c:436)
[   87.383677][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.383820][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.383941][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.384059][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.384203][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.384318][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.384437][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.400960][  T503] ------------[ cut here ]------------
| [   87.401106][  T503] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/503
| [   87.401335][  T503] Modules linked in: unix_diag
| [   87.401753][  T503] Tainted: [W]=WARN
[   87.401853][  T503] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.402023][  T503] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.402193][  T503] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.402665][  T503] RSP: 0018:ffa0000000fd7a80 EFLAGS: 00010286
[   87.402830][  T503] RAX: 00000000ffffffa6 RBX: ff1100000ca9c580 RCX: 1ff40000001faf16
[   87.403035][  T503] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ca9c63c
[   87.403230][  T503] RBP: ff1100000883c000 R08: 1fe22000019538c9 R09: ff1100000ea92e80
[   87.403427][  T503] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   87.403628][  T503] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000883c000
[   87.403825][  T503] FS:  00007f131f6f7840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   87.404065][  T503] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.404230][  T503] CR2: 00007f131f9017d0 CR3: 000000000e19f004 CR4: 0000000000771ef0
[   87.404432][  T503] PKRU: 55555554
[   87.404529][  T503] Call Trace:
[   87.404631][  T503]  <TASK>
[   87.404699][  T503]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   87.404829][  T503]  ? notifier_call_chain (kernel/notifier.c:85)
[   87.404967][  T503]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   87.405068][  T503]  register_netdevice (net/core/dev.c:11488)
[   87.405200][  T503]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   87.405364][  T503]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   87.405500][  T503]  register_netdev (net/core/dev.c:11552)
[   87.405636][  T503]  loopback_net_init (drivers/net/loopback.c:218)
[   87.405768][  T503]  ops_init (net/core/net_namespace.c:137)
[   87.405869][  T503]  setup_net (net/core/net_namespace.c:446)
[   87.405975][  T503]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   87.406104][  T503]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   87.406236][  T503]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   87.406367][  T503]  copy_net_ns (net/core/net_namespace.c:579)
[   87.406503][  T503]  create_new_namespaces (kernel/nsproxy.c:132)
[   87.406641][  T503]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   87.406771][  T503]  ksys_unshare (kernel/fork.c:3243)
[   87.406909][  T503]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   87.407043][  T503]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   87.407175][  T503]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   87.407308][  T503]  ? __ia32_sys_open (fs/open.c:1374)
[   87.407445][  T503]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   87.407576][  T503]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   87.407711][  T503]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   87.407841][  T503]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   87.407981][  T503]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   87.408112][  T503]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.408275][  T503] RIP: 0033:0x7f131f9b9bcb
[   87.408418][  T503] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   87.408888][  T503] RSP: 002b:00007ffe9a4282e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   87.409097][  T503] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f131f9b9bcb
[   87.409293][  T503] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   87.409491][  T503] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   87.409691][  T503] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe9a42a510
[   87.409887][  T503] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9a42a886
| [   87.414602][  T503] ------------[ cut here ]------------
| [   87.414739][  T503] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/503
| [   87.414975][  T503] Modules linked in: unix_diag
| [   87.415369][  T503] Tainted: [W]=WARN
[   87.415471][  T503] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.415641][  T503] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.415810][  T503] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.416276][  T503] RSP: 0018:ffa0000000fd7918 EFLAGS: 00010286
[   87.416442][  T503] RAX: 00000000ffffffa6 RBX: ff1100000b3f0c80 RCX: 1ff40000001faee9
[   87.416697][  T503] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b3f0d3c
[   87.416892][  T503] RBP: ff110000059fc000 R08: 1fe220000167e1a9 R09: ff1100000ea92e80
[   87.417092][  T503] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   87.417286][  T503] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000059fc000
[   87.417484][  T503] FS:  00007f131f6f7840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   87.417768][  T503] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.417936][  T503] CR2: 00007f131f9017d0 CR3: 000000000e19f004 CR4: 0000000000771ef0
[   87.418132][  T503] PKRU: 55555554
[   87.418228][  T503] Call Trace:
[   87.418325][  T503]  <TASK>
[   87.418392][  T503]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   87.418527][  T503]  ? notifier_call_chain (kernel/notifier.c:85)
[   87.418711][  T503]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   87.418810][  T503]  register_netdevice (net/core/dev.c:11488)
[   87.418948][  T503]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   87.419109][  T503]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   87.419240][  T503]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   87.419370][  T503]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   87.419506][  T503]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   87.419692][  T503]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   87.419824][  T503]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   87.419961][  T503]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   87.420092][  T503]  ops_init (net/core/net_namespace.c:137)
[   87.420192][  T503]  setup_net (net/core/net_namespace.c:446)
[   87.420291][  T503]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   87.420422][  T503]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   87.420555][  T503]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   87.420753][  T503]  copy_net_ns (net/core/net_namespace.c:579)
[   87.420883][  T503]  create_new_namespaces (kernel/nsproxy.c:132)
[   87.421019][  T503]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   87.421149][  T503]  ksys_unshare (kernel/fork.c:3243)
[   87.421281][  T503]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   87.421414][  T503]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   87.421545][  T503]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   87.421731][  T503]  ? __ia32_sys_open (fs/open.c:1374)
[   87.421863][  T503]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   87.421999][  T503]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   87.422128][  T503]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   87.422257][  T503]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   87.422385][  T503]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   87.422516][  T503]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.422734][  T503] RIP: 0033:0x7f131f9b9bcb
[   87.422869][  T503] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   87.423340][  T503] RSP: 002b:00007ffe9a4282e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   87.423566][  T503] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f131f9b9bcb
[   87.423815][  T503] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   87.424033][  T503] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   87.424227][  T503] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe9a42a510
[   87.424423][  T503] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9a42a886
| [   87.429005][  T503] ------------[ cut here ]------------
| [   87.429142][  T503] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/503
| [   87.429373][  T503] Modules linked in: unix_diag
| [   87.429784][  T503] Tainted: [W]=WARN
[   87.429883][  T503] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.430054][  T503] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.430227][  T503] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.430704][  T503] RSP: 0018:ffa0000000fd78f8 EFLAGS: 00010286
[   87.430871][  T503] RAX: 00000000ffffffa6 RBX: ff1100000ca9cc80 RCX: 1ff40000001faee5
[   87.431074][  T503] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ca9cd3c
[   87.431269][  T503] RBP: ff11000008b59000 R08: 1fe22000019539a9 R09: ff1100000ea92e80
[   87.431469][  T503] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   87.432190][  T503] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b59000
[   87.432391][  T503] FS:  00007f131f6f7840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   87.432682][  T503] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.432848][  T503] CR2: 00007f131f9017d0 CR3: 000000000e19f004 CR4: 0000000000771ef0
[   87.433052][  T503] PKRU: 55555554
[   87.433150][  T503] Call Trace:
[   87.433248][  T503]  <TASK>
[   87.433317][  T503]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   87.433452][  T503]  ? notifier_call_chain (kernel/notifier.c:85)
[   87.433641][  T503]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   87.433742][  T503]  register_netdevice (net/core/dev.c:11488)
[   87.433876][  T503]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   87.434046][  T503]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   87.434180][  T503]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   87.434366][  T503]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   87.434505][  T503]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   87.434694][  T503]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   87.434827][  T503]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   87.434968][  T503]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   87.435099][  T503]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   87.435234][  T503]  vti_init_net (net/ipv4/ip_vti.c:517)
[   87.435366][  T503]  ops_init (net/core/net_namespace.c:137)
[   87.435471][  T503]  setup_net (net/core/net_namespace.c:446)
[   87.435573][  T503]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   87.435760][  T503]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   87.435893][  T503]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   87.436036][  T503]  copy_net_ns (net/core/net_namespace.c:579)
[   87.436169][  T503]  create_new_namespaces (kernel/nsproxy.c:132)
[   87.436304][  T503]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   87.436440][  T503]  ksys_unshare (kernel/fork.c:3243)
[   87.436571][  T503]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   87.436761][  T503]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   87.436894][  T503]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   87.437035][  T503]  ? __ia32_sys_open (fs/open.c:1374)
[   87.437168][  T503]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   87.437300][  T503]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   87.437435][  T503]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   87.437569][  T503]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   87.437756][  T503]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   87.437889][  T503]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.438058][  T503] RIP: 0033:0x7f131f9b9bcb
[   87.438195][  T503] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   87.438726][  T503] RSP: 002b:00007ffe9a4282e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   87.438929][  T503] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f131f9b9bcb
[   87.439128][  T503] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   87.439324][  T503] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   87.439526][  T503] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe9a42a510
[   87.439778][  T503] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9a42a886
| [   87.441607][   T68] ------------[ cut here ]------------
| [   87.441734][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.441978][   T68] Modules linked in: unix_diag
| [   87.442383][   T68] Tainted: [W]=WARN
[   87.442480][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.442668][   T68] Workqueue: netns cleanup_net
[   87.442796][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.442963][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.443402][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   87.443562][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b269700 RCX: 1ff4000000092eaf
[   87.443749][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b2697bc
[   87.443938][   T68] RBP: ff11000007869000 R08: 1fe220000164d2f9 R09: ff11000008e42ed0
[   87.444124][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   87.444308][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   87.444496][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   87.444723][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.444878][   T68] CR2: 0000562b0c651d5c CR3: 000000000e19f002 CR4: 0000000000771ef0
[   87.445074][   T68] PKRU: 55555554
[   87.445170][   T68] Call Trace:
[   87.445264][   T68]  <TASK>
[   87.445329][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   87.445455][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   87.445550][   T68]  netif_close_many (net/core/dev.c:1804)
[   87.445679][   T68]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   87.445805][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   87.445934][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   87.446090][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   87.446252][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   87.446375][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   87.446502][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   87.446630][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.446785][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.446919][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   87.447044][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   87.447168][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.447291][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   87.447419][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   87.447544][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.447671][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.447798][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.447927][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.448050][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.448174][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.448295][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.448425][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.448554][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.448690][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.448818][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.448946][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.449070][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.449207][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.449330][   T68]  kthread (kernel/kthread.c:436)
[   87.449425][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.449579][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.449714][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.449845][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.450005][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.450128][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.450252][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.452387][   T68] ------------[ cut here ]------------
| [   87.452512][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   87.452892][   T68] Modules linked in: unix_diag
| [   87.453296][   T68] Tainted: [W]=WARN
[   87.453386][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.453536][   T68] Workqueue: netns cleanup_net
[   87.453664][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.453820][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.454249][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   87.454399][   T68] RAX: 00000000ffffffa6 RBX: ff11000012434740 RCX: 1ff4000000092ed5
[   87.454586][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000124347fc
[   87.454764][   T68] RBP: ff11000007869000 R08: 1fe2200002486901 R09: ff11000008e42ed0
[   87.454946][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.455123][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   87.455302][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   87.455509][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.455667][   T68] CR2: 0000562b0c651d5c CR3: 000000000e19f002 CR4: 0000000000771ef0
[   87.455846][   T68] PKRU: 55555554
[   87.455940][   T68] Call Trace:
[   87.456030][   T68]  <TASK>
[   87.456093][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   87.456244][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   87.456395][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.456521][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   87.456648][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   87.456768][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   87.456888][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   87.457012][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   87.457133][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   87.457252][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.457375][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   87.457498][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   87.457631][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   87.457752][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.457871][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.458002][   T68]  process_one_work (kernel/workqueue.c:3314)
[   87.458126][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   87.458246][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.458371][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   87.458495][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.458618][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.458740][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   87.458858][   T68]  kthread (kernel/kthread.c:436)
[   87.458954][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.459103][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.459226][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.459346][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   87.459499][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.459627][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   87.459747][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   87.464894][  T503] ------------[ cut here ]------------
| [   87.465038][  T503] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/503
| [   87.465266][  T503] Modules linked in: unix_diag
| [   87.465677][  T503] Tainted: [W]=WARN
[   87.465777][  T503] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.465950][  T503] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.466121][  T503] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.466593][  T503] RSP: 0018:ffa0000000fd7a78 EFLAGS: 00010286
[   87.466758][  T503] RAX: 00000000ffffffa6 RBX: ff1100000b269e00 RCX: 1ff40000001faf15
[   87.466958][  T503] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b269ebc
[   87.467152][  T503] RBP: ff11000007844000 R08: 1fe220000164d3d9 R09: ff1100000ea92e80
[   87.467349][  T503] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   87.467547][  T503] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007844000
[   87.467832][  T503] FS:  00007f131f6f7840(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   87.468069][  T503] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.468234][  T503] CR2: 0000562b0c651d5c CR3: 000000000e19f002 CR4: 0000000000771ef0
[   87.468434][  T503] PKRU: 55555554
[   87.468531][  T503] Call Trace:
[   87.468760][  T503]  <TASK>
[   87.468830][  T503]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   87.468970][  T503]  ? notifier_call_chain (kernel/notifier.c:85)
[   87.469103][  T503]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   87.469205][  T503]  register_netdevice (net/core/dev.c:11488)
[   87.469337][  T503]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   87.469503][  T503]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.469737][  T503]  register_netdev (net/core/dev.c:11552)
[   87.469869][  T503]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   87.470007][  T503]  ops_init (net/core/net_namespace.c:137)
[   87.470107][  T503]  setup_net (net/core/net_namespace.c:446)
[   87.470206][  T503]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   87.470338][  T503]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   87.470471][  T503]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   87.470670][  T503]  copy_net_ns (net/core/net_namespace.c:579)
[   87.470802][  T503]  create_new_namespaces (kernel/nsproxy.c:132)
[   87.470943][  T503]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   87.471074][  T503]  ksys_unshare (kernel/fork.c:3243)
[   87.471206][  T503]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   87.471336][  T503]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   87.471470][  T503]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   87.471657][  T503]  ? __ia32_sys_open (fs/open.c:1374)
[   87.471790][  T503]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   87.471925][  T503]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   87.472056][  T503]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   87.472185][  T503]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   87.472319][  T503]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   87.472453][  T503]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.472670][  T503] RIP: 0033:0x7f131f9b9bcb
[   87.472807][  T503] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   87.473279][  T503] RSP: 002b:00007ffe9a4282e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   87.473480][  T503] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f131f9b9bcb
[   87.473730][  T503] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   87.473929][  T503] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   87.474124][  T503] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe9a42a510
[   87.474321][  T503] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9a42a886
| [   87.482738][  T503] ------------[ cut here ]------------
| [   87.482925][  T503] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/503
| [   87.483201][  T503] Modules linked in: unix_diag
| [   87.483717][  T503] Tainted: [W]=WARN
[   87.483864][  T503] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.484083][  T503] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.484301][  T503] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.484829][  T503] RSP: 0018:ffa0000000fd7a68 EFLAGS: 00010286
[   87.485051][  T503] RAX: 00000000ffffffa6 RBX: ff11000008f1f1c0 RCX: 1ff40000001faf13
[   87.485292][  T503] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f1f27c
[   87.485542][  T503] RBP: ff11000007f34000 R08: 1fe22000011e3e51 R09: ff1100000ea92e80
[   87.485829][  T503] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.486078][  T503] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007f34000
[   87.486324][  T503] FS:  00007f131f6f7840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   87.486623][  T503] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.486836][  T503] CR2: 00007f098e3c9430 CR3: 000000000e19f006 CR4: 0000000000771ef0
[   87.487084][  T503] PKRU: 55555554
[   87.487229][  T503] Call Trace:
[   87.487377][  T503]  <TASK>
[   87.487498][  T503]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   87.487691][  T503]  ? notifier_call_chain (kernel/notifier.c:85)
[   87.487869][  T503]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   87.488024][  T503]  register_netdevice (net/core/dev.c:11488)
[   87.488203][  T503]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   87.488419][  T503]  register_netdev (net/core/dev.c:11552)
[   87.488619][  T503]  sit_init_net (net/ipv6/sit.c:1860)
[   87.488800][  T503]  ops_init (net/core/net_namespace.c:137)
[   87.488954][  T503]  setup_net (net/core/net_namespace.c:446)
[   87.489101][  T503]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   87.489277][  T503]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   87.489463][  T503]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   87.489658][  T503]  copy_net_ns (net/core/net_namespace.c:579)
[   87.489840][  T503]  create_new_namespaces (kernel/nsproxy.c:132)
[   87.490034][  T503]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   87.490217][  T503]  ksys_unshare (kernel/fork.c:3243)
[   87.490394][  T503]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   87.490595][  T503]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   87.490775][  T503]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   87.490963][  T503]  ? __ia32_sys_open (fs/open.c:1374)
[   87.491143][  T503]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   87.491324][  T503]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   87.491515][  T503]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   87.491709][  T503]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   87.491886][  T503]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   87.492074][  T503]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.492283][  T503] RIP: 0033:0x7f131f9b9bcb
[   87.492473][  T503] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   87.493008][  T503] RSP: 002b:00007ffe9a4282e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   87.493252][  T503] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f131f9b9bcb
[   87.493499][  T503] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   87.493756][  T503] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   87.494009][  T503] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe9a42a510
[   87.494249][  T503] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9a42a886
| [   87.499621][  T503] ------------[ cut here ]------------
| [   87.499799][  T503] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/503
| [   87.500078][  T503] Modules linked in: unix_diag
| [   87.500598][  T503] Tainted: [W]=WARN
[   87.500743][  T503] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.500963][  T503] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.501183][  T503] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.502267][  T503] RSP: 0018:ffa0000000fd7a78 EFLAGS: 00010286
[   87.502610][  T503] RAX: 00000000ffffffa6 RBX: ff1100000b693700 RCX: 1ff40000001faf15
[   87.502922][  T503] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b6937bc
[   87.503221][  T503] RBP: ff11000007cb9000 R08: 1fe22000016d26f9 R09: ff1100000ea92e80
[   87.503529][  T503] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   87.503839][  T503] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007cb9000
[   87.504149][  T503] FS:  00007f131f6f7840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   87.504488][  T503] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.504770][  T503] CR2: 00007f098e3c9430 CR3: 000000000e19f006 CR4: 0000000000771ef0
[   87.505075][  T503] PKRU: 55555554
[   87.505274][  T503] Call Trace:
[   87.505478][  T503]  <TASK>
[   87.505659][  T503]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   87.505892][  T503]  ? notifier_call_chain (kernel/notifier.c:85)
[   87.506137][  T503]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   87.506340][  T503]  register_netdevice (net/core/dev.c:11488)
[   87.506650][  T503]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   87.506924][  T503]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.507159][  T503]  register_netdev (net/core/dev.c:11552)
[   87.507393][  T503]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   87.507647][  T503]  ops_init (net/core/net_namespace.c:137)
[   87.507848][  T503]  setup_net (net/core/net_namespace.c:446)
[   87.508039][  T503]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   87.508217][  T503]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   87.508398][  T503]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   87.508601][  T503]  copy_net_ns (net/core/net_namespace.c:579)
[   87.508783][  T503]  create_new_namespaces (kernel/nsproxy.c:132)
[   87.508973][  T503]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   87.509153][  T503]  ksys_unshare (kernel/fork.c:3243)
[   87.509332][  T503]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   87.509520][  T503]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   87.509712][  T503]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   87.509893][  T503]  ? __ia32_sys_open (fs/open.c:1374)
[   87.510085][  T503]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   87.510263][  T503]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   87.510446][  T503]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   87.510636][  T503]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   87.510818][  T503]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   87.511010][  T503]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.511222][  T503] RIP: 0033:0x7f131f9b9bcb
[   87.511406][  T503] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   87.511941][  T503] RSP: 002b:00007ffe9a4282e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[   87.512188][  T503] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f131f9b9bcb
[   87.512433][  T503] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   87.512691][  T503] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   87.512939][  T503] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe9a42a510
[   87.513184][  T503] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe9a42a886
| [   87.542037][  T504] ------------[ cut here ]------------
| [   87.542184][  T504] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/504
| [   87.542417][  T504] Modules linked in: unix_diag
| [   87.543565][  T504] Tainted: [W]=WARN
[   87.543672][  T504] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.543836][  T504] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   87.544010][  T504] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   87.544479][  T504] RSP: 0018:ffa0000001047020 EFLAGS: 00010286
[   87.544648][  T504] RAX: 00000000ffffffa6 RBX: ff11000009aff000 RCX: 1ff4000000208dca
[   87.544842][  T504] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009aff0bc
[   87.545045][  T504] RBP: ff1100000883c000 R08: 1fe220000135fe19 R09: ff11000009b62e58
[   87.545239][  T504] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[   87.545437][  T504] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   87.545640][  T504] FS:  00007f3f37fa1840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   87.545871][  T504] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.546041][  T504] CR2: 00007f3f382711a0 CR3: 0000000014070001 CR4: 0000000000771ef0
[   87.546238][  T504] PKRU: 55555554
[   87.546335][  T504] Call Trace:
[   87.546437][  T504]  <TASK>
[   87.546505][  T504]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   87.546643][  T504]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   87.546745][  T504]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   87.546876][  T504]  __dev_notify_flags (net/core/dev.c:9787)
[   87.547013][  T504]  ? netif_change_name (net/core/dev.c:1495)
[   87.547143][  T504]  ? __dev_change_flags (net/core/dev.c:9752)
[   87.547274][  T504]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   87.547406][  T504]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.547540][  T504]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   87.547682][  T504]  netif_change_flags (net/core/dev.c:9820)
[   87.547813][  T504]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   87.547948][  T504]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   87.548080][  T504]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   87.548212][  T504]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   87.548374][  T504]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   87.548510][  T504]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   87.548646][  T504]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   87.548775][  T504]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   87.548910][  T504]  ? __kernel_text_address (kernel/extable.c:79)
[   87.549040][  T504]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   87.549173][  T504]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.549302][  T504]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   87.549438][  T504]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.549571][  T504]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   87.549706][  T504]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.549837][  T504]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.549976][  T504]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   87.550107][  T504]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   87.550236][  T504]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   87.550366][  T504]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   87.550502][  T504]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   87.550643][  T504]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   87.550777][  T504]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   87.550914][  T504]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.551044][  T504]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   87.551174][  T504]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   87.551304][  T504]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   87.551436][  T504]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.551570][  T504]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.551705][  T504]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   87.551835][  T504]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   87.551972][  T504]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   87.552103][  T504]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   87.552233][  T504]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   87.552363][  T504]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   87.552497][  T504]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   87.552633][  T504]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   87.552764][  T504]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   87.552893][  T504]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   87.553032][  T504]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   87.553163][  T504]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   87.553294][  T504]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   87.553429][  T504]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   87.553559][  T504]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   87.553696][  T504]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   87.553828][  T504]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   87.553966][  T504]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   87.554097][  T504]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   87.554230][  T504]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   87.554362][  T504]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   87.554510][  T504]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   87.554648][  T504]  ? copy_msghdr_from_user (net/socket.c:2635)
[   87.554777][  T504]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   87.554948][  T504]  ? move_addr_to_kernel (net/socket.c:258)
[   87.555080][  T504]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   87.555210][  T504]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   87.555341][  T504]  ___sys_sendmsg (net/socket.c:2752)
[   87.555473][  T504]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   87.555643][  T504]  ? copy_msghdr_from_user (net/socket.c:2603)
[   87.555786][  T504]  __sys_sendmsg (net/socket.c:2784)
[   87.555922][  T504]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   87.556050][  T504]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   87.556213][  T504]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   87.556344][  T504]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   87.556478][  T504]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   87.556616][  T504]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   87.556745][  T504]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   87.556875][  T504]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.557041][  T504] RIP: 0033:0x7f3f381db08e
[   87.557178][  T504] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   87.557655][  T504] RSP: 002b:00007fff675cdc80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   87.557851][  T504] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f3f381db08e
[   87.558049][  T504] RDX: 0000000000000000 RSI: 00007fff675cdd30 RDI: 0000000000000005
[   87.558242][  T504] RBP: 00007fff675cdc90 R08: 0000000000000000 R09: 0000000000000000
[   87.558443][  T504] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d6a0
[   87.558643][  T504] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff675ce400
| [   92.800984][   T68] ------------[ cut here ]------------
| [   92.801150][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   92.801394][   T68] Modules linked in: unix_diag
| [   92.801807][   T68] Tainted: [W]=WARN
[   92.801897][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.802057][   T68] Workqueue: netns cleanup_net
[   92.802181][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.802338][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   92.802773][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   92.802930][   T68] RAX: 00000000ffffffa6 RBX: ff1100000f906200 RCX: 1ff4000000092eed
[   92.803105][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f9062bc
[   92.803283][   T68] RBP: ff11000007cb9000 R08: 1fe2200001f20c59 R09: ff11000008e42ed0
[   92.803466][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   92.803650][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   92.803825][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   92.804039][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.804187][   T68] CR2: 0000562b29a4da88 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   92.804385][   T68] PKRU: 55555554
[   92.804476][   T68] Call Trace:
[   92.804565][   T68]  <TASK>
[   92.804635][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   92.804787][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   92.804940][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   92.805062][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   92.805182][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   92.805299][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   92.805420][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   92.805541][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   92.805666][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   92.805782][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   92.805905][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   92.806031][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   92.806147][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   92.806270][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   92.806389][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   92.806517][   T68]  process_one_work (kernel/workqueue.c:3314)
[   92.806696][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   92.806835][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   92.806972][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   92.807100][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   92.807219][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   92.807338][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   92.807460][   T68]  kthread (kernel/kthread.c:436)
[   92.807548][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   92.807760][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   92.807878][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   92.808003][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   92.808149][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   92.808270][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   92.808388][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   92.811615][   T68] ------------[ cut here ]------------
| [   92.811750][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   92.812104][   T68] Modules linked in: unix_diag
| [   92.812536][   T68] Tainted: [W]=WARN
[   92.812637][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.812781][   T68] Workqueue: netns cleanup_net
[   92.812902][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.813067][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   92.813562][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   92.813784][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cd6dc40 RCX: 1ff4000000092eed
[   92.813961][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000cd6dcfc
[   92.814132][   T68] RBP: ff11000007f34000 R08: 1fe22000019adba1 R09: ff11000008e42ed0
[   92.814377][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   92.814553][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   92.814804][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   92.815017][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.815166][   T68] CR2: 0000562b29a4da88 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   92.815417][   T68] PKRU: 55555554
[   92.815503][   T68] Call Trace:
[   92.815594][   T68]  <TASK>
[   92.815655][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   92.815803][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   92.816029][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   92.816145][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   92.816268][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   92.816463][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   92.816586][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   92.816704][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   92.816821][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   92.817013][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   92.817133][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   92.817249][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   92.817364][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   92.817555][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   92.817681][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   92.817798][   T68]  process_one_work (kernel/workqueue.c:3314)
[   92.817927][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   92.818114][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   92.818235][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   92.818356][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   92.818476][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   92.818666][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   92.818781][   T68]  kthread (kernel/kthread.c:436)
[   92.818872][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   92.819027][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   92.819215][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   92.819331][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   92.819476][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   92.819594][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   92.819781][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   92.823881][   T68] ------------[ cut here ]------------
| [   92.824022][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   92.824253][   T68] Modules linked in: unix_diag
| [   92.824652][   T68] Tainted: [W]=WARN
[   92.824741][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.824886][   T68] Workqueue: netns cleanup_net
[   92.825014][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.825165][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   92.825592][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   92.825739][   T68] RAX: 00000000ffffffa6 RBX: ff1100000bdfa200 RCX: 1ff4000000092eed
[   92.825920][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bdfa2bc
[   92.826100][   T68] RBP: ff11000007844000 R08: 1fe22000017bf459 R09: ff11000008e42ed0
[   92.826278][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   92.826456][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   92.826644][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   92.826853][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.827007][   T68] CR2: 0000562b29a4da88 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   92.827181][   T68] PKRU: 55555554
[   92.827269][   T68] Call Trace:
[   92.827360][   T68]  <TASK>
[   92.827423][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   92.827579][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   92.827730][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   92.827848][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   92.827975][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   92.828092][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   92.828209][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   92.828327][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   92.828449][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   92.828566][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   92.828696][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   92.828892][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   92.829033][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   92.829157][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   92.829276][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   92.829394][   T68]  process_one_work (kernel/workqueue.c:3314)
[   92.829521][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   92.829650][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   92.829775][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   92.829892][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   92.830014][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   92.830131][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   92.830252][   T68]  kthread (kernel/kthread.c:436)
[   92.830339][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   92.830487][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   92.830721][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   92.830838][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   92.830987][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   92.831102][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   92.831217][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   92.834327][   T68] ------------[ cut here ]------------
| [   92.834462][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   92.834710][   T68] Modules linked in: unix_diag
| [   92.835110][   T68] Tainted: [W]=WARN
[   92.835199][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.835345][   T68] Workqueue: netns cleanup_net
[   92.835471][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.835628][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   92.836052][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   92.836198][   T68] RAX: 00000000ffffffa6 RBX: ff1100000ce2ee40 RCX: 1ff4000000092eed
[   92.836374][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ce2eefc
[   92.836557][   T68] RBP: ff11000008b59000 R08: 1fe22000019c5de1 R09: ff11000008e42ed0
[   92.836737][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   92.836915][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   92.837097][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   92.837304][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.837452][   T68] CR2: 00007f6732ce3668 CR3: 000000000989f006 CR4: 0000000000771ef0
[   92.837634][   T68] PKRU: 55555554
[   92.837723][   T68] Call Trace:
[   92.837814][   T68]  <TASK>
[   92.837880][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   92.838036][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   92.838187][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   92.838309][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   92.838430][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   92.838548][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   92.838671][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   92.838788][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   92.838909][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   92.839028][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   92.839151][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   92.839268][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   92.839383][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   92.839504][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   92.839677][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   92.839871][   T68]  process_one_work (kernel/workqueue.c:3314)
[   92.840004][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   92.840119][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   92.840240][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   92.840358][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   92.840476][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   92.840657][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   92.840775][   T68]  kthread (kernel/kthread.c:436)
[   92.840863][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   92.841013][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   92.841130][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   92.841248][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   92.841396][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   92.841517][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   92.841707][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   92.844170][   T68] ------------[ cut here ]------------
| [   92.844285][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   92.844519][   T68] Modules linked in: unix_diag
| [   92.844905][   T68] Tainted: [W]=WARN
[   92.845002][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.845151][   T68] Workqueue: netns cleanup_net
[   92.845272][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.845428][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   92.845845][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   92.846001][   T68] RAX: 00000000ffffffa6 RBX: ff1100000fabb000 RCX: 1ff4000000092eed
[   92.846175][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000fabb0bc
[   92.846347][   T68] RBP: ff110000059fc000 R08: 1fe2200001f57619 R09: ff11000008e42ed0
[   92.846523][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   92.846702][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   92.846877][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   92.847088][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.847235][   T68] CR2: 00007f6732ce3668 CR3: 000000004d34d004 CR4: 0000000000771ef0
[   92.847410][   T68] PKRU: 55555554
[   92.847497][   T68] Call Trace:
[   92.847589][   T68]  <TASK>
[   92.847651][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   92.847799][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   92.847949][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   92.848066][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   92.848183][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   92.848300][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   92.848418][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   92.848535][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   92.848656][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   92.848771][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   92.848889][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   92.849012][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   92.849131][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   92.849248][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   92.849362][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   92.849484][   T68]  process_one_work (kernel/workqueue.c:3314)
[   92.849611][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   92.849728][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   92.849848][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   92.849976][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   92.850093][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   92.850212][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   92.850327][   T68]  kthread (kernel/kthread.c:436)
[   92.850419][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   92.850564][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   92.850683][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   92.850802][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   92.850950][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   92.851071][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   92.851189][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   92.866486][   T68] ------------[ cut here ]------------
| [   92.866624][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   92.866862][   T68] Modules linked in: unix_diag
| [   92.867268][   T68] Tainted: [W]=WARN
[   92.867360][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.867511][   T68] Workqueue: netns cleanup_net
[   92.867644][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.867802][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   92.868246][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   92.868399][   T68] RAX: 00000000ffffffa6 RBX: ff1100000faba040 RCX: 1ff4000000092eaf
[   92.868589][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000faba0fc
[   92.868779][   T68] RBP: ff1100000883c000 R08: 1fe2200001f57421 R09: ff11000008e42ed0
[   92.868970][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   92.869151][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   92.869335][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   92.869550][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.869759][   T68] CR2: 00007f6732ce3668 CR3: 000000004d34d004 CR4: 0000000000771ef0
[   92.869949][   T68] PKRU: 55555554
[   92.870039][   T68] Call Trace:
[   92.870129][   T68]  <TASK>
[   92.870192][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   92.870317][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   92.870462][   T68]  netif_close_many (net/core/dev.c:1804)
[   92.870635][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   92.870762][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   92.870888][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   92.871015][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   92.871136][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   92.871288][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   92.871444][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   92.871565][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   92.871735][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   92.871859][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   92.872017][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   92.872142][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   92.872265][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   92.872387][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   92.872509][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   92.872683][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   92.872809][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   92.872933][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   92.873060][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   92.873181][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   92.873306][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   92.873433][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   92.873556][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   92.873731][   T68]  process_one_work (kernel/workqueue.c:3314)
[   92.873857][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   92.873982][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   92.874108][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   92.874230][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   92.874360][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   92.874484][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   92.874656][   T68]  kthread (kernel/kthread.c:436)
[   92.874750][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   92.874900][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   92.875032][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   92.875155][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   92.875307][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   92.875432][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   92.875554][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   92.877859][   T68] ------------[ cut here ]------------
| [   92.877991][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   92.878228][   T68] Modules linked in: unix_diag
| [   92.878628][   T68] Tainted: [W]=WARN
[   92.878717][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.878862][   T68] Workqueue: netns cleanup_net
[   92.878990][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.879147][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   92.879564][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   92.879719][   T68] RAX: 00000000ffffffa6 RBX: ff1100000b4ad380 RCX: 1ff4000000092ed5
[   92.879895][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b4ad43c
[   92.880073][   T68] RBP: ff1100000883c000 R08: 1fe2200001695a89 R09: ff11000008e42ed0
[   92.880246][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   92.880419][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   92.880602][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   92.880807][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.880958][   T68] CR2: 00007f6732cabac8 CR3: 000000004d34d005 CR4: 0000000000771ef0
[   92.881134][   T68] PKRU: 55555554
[   92.881221][   T68] Call Trace:
[   92.881308][   T68]  <TASK>
[   92.881369][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   92.881524][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   92.881677][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   92.881796][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   92.881915][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   92.882039][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   92.882156][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   92.882274][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   92.882395][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   92.882516][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   92.882648][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   92.882765][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   92.882881][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   92.883006][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   92.883122][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   92.883243][   T68]  process_one_work (kernel/workqueue.c:3314)
[   92.883363][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   92.883482][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   92.883613][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   92.883731][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   92.883847][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   92.883975][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   92.884092][   T68]  kthread (kernel/kthread.c:436)
[   92.884181][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   92.884330][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   92.884452][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   92.884569][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   92.884721][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   92.884838][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   92.884971][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   92.901911][  T520] ------------[ cut here ]------------
| [   92.902060][  T520] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/520
| [   92.902288][  T520] Modules linked in: unix_diag
| [   92.902691][  T520] Tainted: [W]=WARN
[   92.902792][  T520] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.902958][  T520] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.903124][  T520] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   92.903588][  T520] RSP: 0018:ffa00000010e7a80 EFLAGS: 00010286
[   92.903749][  T520] RAX: 00000000ffffffa6 RBX: ff1100000b3f03c0 RCX: 1ff400000021cf16
[   92.903945][  T520] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b3f047c
[   92.904137][  T520] RBP: ff11000008b39000 R08: 1fe220000167e091 R09: ff11000005b28b80
[   92.904328][  T520] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   92.904521][  T520] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008b39000
[   92.904724][  T520] FS:  00007f5b73bda840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   92.904964][  T520] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.905126][  T520] CR2: 00007f6732ce3668 CR3: 0000000004a5a001 CR4: 0000000000771ef0
[   92.905318][  T520] PKRU: 55555554
[   92.905418][  T520] Call Trace:
[   92.905514][  T520]  <TASK>
[   92.905587][  T520]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   92.905716][  T520]  ? notifier_call_chain (kernel/notifier.c:85)
[   92.905847][  T520]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   92.905951][  T520]  register_netdevice (net/core/dev.c:11488)
[   92.906081][  T520]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   92.906241][  T520]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   92.906369][  T520]  register_netdev (net/core/dev.c:11552)
[   92.906501][  T520]  loopback_net_init (drivers/net/loopback.c:218)
[   92.906638][  T520]  ops_init (net/core/net_namespace.c:137)
[   92.906738][  T520]  setup_net (net/core/net_namespace.c:446)
[   92.906835][  T520]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   92.906969][  T520]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   92.907098][  T520]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   92.907228][  T520]  copy_net_ns (net/core/net_namespace.c:579)
[   92.907359][  T520]  create_new_namespaces (kernel/nsproxy.c:132)
[   92.907493][  T520]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   92.907628][  T520]  ksys_unshare (kernel/fork.c:3243)
[   92.907756][  T520]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   92.907884][  T520]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   92.908016][  T520]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   92.908147][  T520]  ? __ia32_sys_open (fs/open.c:1374)
[   92.908277][  T520]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   92.908406][  T520]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   92.908539][  T520]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   92.908673][  T520]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   92.908801][  T520]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   92.908932][  T520]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   92.909096][  T520] RIP: 0033:0x7f5b73e9cbcb
[   92.909233][  T520] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   92.909704][  T520] RSP: 002b:00007ffc0aa515f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   92.909900][  T520] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f5b73e9cbcb
[   92.910100][  T520] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   92.910293][  T520] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   92.910488][  T520] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc0aa53820
[   92.910691][  T520] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc0aa55886
| [   92.914442][  T520] ------------[ cut here ]------------
| [   92.914573][  T520] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/520
| [   92.914801][  T520] Modules linked in: unix_diag
| [   92.915197][  T520] Tainted: [W]=WARN
[   92.915294][  T520] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.915457][  T520] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.915629][  T520] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   92.916092][  T520] RSP: 0018:ffa00000010e7918 EFLAGS: 00010286
[   92.916255][  T520] RAX: 00000000ffffffa6 RBX: ff11000008f1f000 RCX: 1ff400000021cee9
[   92.916450][  T520] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000008f1f0bc
[   92.916646][  T520] RBP: ff11000007c89000 R08: 1fe22000011e3e19 R09: ff11000005b28b80
[   92.916838][  T520] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   92.917038][  T520] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007c89000
[   92.917232][  T520] FS:  00007f5b73bda840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   92.917462][  T520] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.917629][  T520] CR2: 00007f6732ce3668 CR3: 0000000004a5a001 CR4: 0000000000771ef0
[   92.917825][  T520] PKRU: 55555554
[   92.917928][  T520] Call Trace:
[   92.918027][  T520]  <TASK>
[   92.918095][  T520]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   92.918225][  T520]  ? notifier_call_chain (kernel/notifier.c:85)
[   92.918355][  T520]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   92.918455][  T520]  register_netdevice (net/core/dev.c:11488)
[   92.918591][  T520]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   92.918757][  T520]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   92.918888][  T520]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   92.919022][  T520]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   92.919151][  T520]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   92.919282][  T520]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   92.919416][  T520]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   92.919549][  T520]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[   92.920183][  T520]  ops_init (net/core/net_namespace.c:137)
[   92.920283][  T520]  setup_net (net/core/net_namespace.c:446)
[   92.920381][  T520]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   92.920512][  T520]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   92.920695][  T520]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   92.920826][  T520]  copy_net_ns (net/core/net_namespace.c:579)
[   92.920961][  T520]  create_new_namespaces (kernel/nsproxy.c:132)
[   92.921094][  T520]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   92.921223][  T520]  ksys_unshare (kernel/fork.c:3243)
[   92.921352][  T520]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   92.921483][  T520]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   92.921666][  T520]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   92.921846][  T520]  ? __ia32_sys_open (fs/open.c:1374)
[   92.921982][  T520]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   92.922112][  T520]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   92.922240][  T520]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   92.922368][  T520]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   92.922500][  T520]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   92.922681][  T520]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   92.922839][  T520] RIP: 0033:0x7f5b73e9cbcb
[   92.922978][  T520] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   92.923437][  T520] RSP: 002b:00007ffc0aa515f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   92.923687][  T520] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f5b73e9cbcb
[   92.923878][  T520] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   92.924075][  T520] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   92.924270][  T520] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc0aa53820
[   92.924466][  T520] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc0aa55886
| [   92.929286][  T520] ------------[ cut here ]------------
| [   92.929424][  T520] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/520
| [   92.929656][  T520] Modules linked in: unix_diag
| [   92.930059][  T520] Tainted: [W]=WARN
[   92.930157][  T520] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.930318][  T520] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.930487][  T520] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   92.930959][  T520] RSP: 0018:ffa00000010e78f8 EFLAGS: 00010286
[   92.931123][  T520] RAX: 00000000ffffffa6 RBX: ff1100000296ae40 RCX: 1ff400000021cee5
[   92.931315][  T520] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000296aefc
[   92.931511][  T520] RBP: ff110000090e9000 R08: 1fe220000052d5e1 R09: ff11000005b28b80
[   92.931712][  T520] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   92.931906][  T520] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000090e9000
[   92.932106][  T520] FS:  00007f5b73bda840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   92.932332][  T520] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.932499][  T520] CR2: 00007f6732ce3668 CR3: 0000000004a5a001 CR4: 0000000000771ef0
[   92.932701][  T520] PKRU: 55555554
[   92.932798][  T520] Call Trace:
[   92.932895][  T520]  <TASK>
[   92.932968][  T520]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   92.933098][  T520]  ? notifier_call_chain (kernel/notifier.c:85)
[   92.933228][  T520]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   92.933327][  T520]  register_netdevice (net/core/dev.c:11488)
[   92.933464][  T520]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   92.933629][  T520]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[   92.933761][  T520]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[   92.933891][  T520]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[   92.934023][  T520]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   92.934154][  T520]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[   92.934285][  T520]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[   92.934420][  T520]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[   92.934552][  T520]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   92.934691][  T520]  vti_init_net (net/ipv4/ip_vti.c:517)
[   92.934820][  T520]  ops_init (net/core/net_namespace.c:137)
[   92.934926][  T520]  setup_net (net/core/net_namespace.c:446)
[   92.935025][  T520]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   92.935153][  T520]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   92.935283][  T520]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   92.935420][  T520]  copy_net_ns (net/core/net_namespace.c:579)
[   92.935551][  T520]  create_new_namespaces (kernel/nsproxy.c:132)
[   92.936185][  T520]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   92.936317][  T520]  ksys_unshare (kernel/fork.c:3243)
[   92.936450][  T520]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   92.936580][  T520]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   92.936765][  T520]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   92.936898][  T520]  ? __ia32_sys_open (fs/open.c:1374)
[   92.937036][  T520]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   92.937165][  T520]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   92.937295][  T520]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   92.937427][  T520]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   92.937557][  T520]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   92.937743][  T520]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   92.937904][  T520] RIP: 0033:0x7f5b73e9cbcb
[   92.938044][  T520] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   92.938561][  T520] RSP: 002b:00007ffc0aa515f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   92.938810][  T520] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f5b73e9cbcb
[   92.939009][  T520] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   92.939201][  T520] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   92.939393][  T520] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc0aa53820
[   92.939645][  T520] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc0aa55886
| [   92.944064][  T520] ------------[ cut here ]------------
| [   92.944196][  T520] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/520
| [   92.944421][  T520] Modules linked in: unix_diag
| [   92.944888][  T520] Tainted: [W]=WARN
[   92.944991][  T520] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.945149][  T520] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.945315][  T520] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   92.945779][  T520] RSP: 0018:ffa00000010e7a78 EFLAGS: 00010286
[   92.945943][  T520] RAX: 00000000ffffffa6 RBX: ff1100000c517e00 RCX: 1ff400000021cf15
[   92.946135][  T520] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c517ebc
[   92.946325][  T520] RBP: ff11000009691000 R08: 1fe22000018a2fd9 R09: ff11000005b28b80
[   92.946517][  T520] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   92.946711][  T520] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009691000
[   92.946904][  T520] FS:  00007f5b73bda840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   92.947137][  T520] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.947298][  T520] CR2: 00007f6732ce3668 CR3: 0000000004a5a001 CR4: 0000000000771ef0
[   92.947494][  T520] PKRU: 55555554
[   92.947594][  T520] Call Trace:
[   92.947690][  T520]  <TASK>
[   92.947756][  T520]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   92.947886][  T520]  ? notifier_call_chain (kernel/notifier.c:85)
[   92.948021][  T520]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   92.948119][  T520]  register_netdevice (net/core/dev.c:11488)
[   92.948249][  T520]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   92.948409][  T520]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   92.948541][  T520]  register_netdev (net/core/dev.c:11552)
[   92.948676][  T520]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[   92.948808][  T520]  ops_init (net/core/net_namespace.c:137)
[   92.948906][  T520]  setup_net (net/core/net_namespace.c:446)
[   92.949011][  T520]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   92.949138][  T520]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   92.949267][  T520]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   92.949398][  T520]  copy_net_ns (net/core/net_namespace.c:579)
[   92.949531][  T520]  create_new_namespaces (kernel/nsproxy.c:132)
[   92.949666][  T520]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   92.949794][  T520]  ksys_unshare (kernel/fork.c:3243)
[   92.949928][  T520]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   92.950060][  T520]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   92.950188][  T520]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   92.950317][  T520]  ? __ia32_sys_open (fs/open.c:1374)
[   92.950451][  T520]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   92.950580][  T520]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   92.950714][  T520]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   92.950842][  T520]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   92.950977][  T520]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   92.951107][  T520]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   92.951264][  T520] RIP: 0033:0x7f5b73e9cbcb
[   92.951397][  T520] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   92.951864][  T520] RSP: 002b:00007ffc0aa515f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   92.952065][  T520] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f5b73e9cbcb
[   92.952255][  T520] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   92.952450][  T520] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   92.952647][  T520] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc0aa53820
[   92.952838][  T520] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc0aa55886
| [   92.957780][  T520] ------------[ cut here ]------------
| [   92.957915][  T520] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/520
| [   92.958144][  T520] Modules linked in: unix_diag
| [   92.958542][  T520] Tainted: [W]=WARN
[   92.958645][  T520] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.958807][  T520] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.958979][  T520] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   92.959445][  T520] RSP: 0018:ffa00000010e7a68 EFLAGS: 00010286
[   92.959612][  T520] RAX: 00000000ffffffa6 RBX: ff110000099058c0 RCX: 1ff400000021cf13
[   92.959803][  T520] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000990597c
[   92.960001][  T520] RBP: ff11000009024000 R08: 1fe2200001320b31 R09: ff11000005b28b80
[   92.960192][  T520] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   92.960383][  T520] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009024000
[   92.960579][  T520] FS:  00007f5b73bda840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   92.960809][  T520] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.960976][  T520] CR2: 00007f6732ce3668 CR3: 0000000004a5a001 CR4: 0000000000771ef0
[   92.961170][  T520] PKRU: 55555554
[   92.961266][  T520] Call Trace:
[   92.961361][  T520]  <TASK>
[   92.961431][  T520]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   92.961560][  T520]  ? notifier_call_chain (kernel/notifier.c:85)
[   92.961694][  T520]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   92.961791][  T520]  register_netdevice (net/core/dev.c:11488)
[   92.961925][  T520]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   92.962088][  T520]  register_netdev (net/core/dev.c:11552)
[   92.962215][  T520]  sit_init_net (net/ipv6/sit.c:1860)
[   92.962345][  T520]  ops_init (net/core/net_namespace.c:137)
[   92.962447][  T520]  setup_net (net/core/net_namespace.c:446)
[   92.962545][  T520]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   92.962678][  T520]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   92.962808][  T520]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   92.962942][  T520]  copy_net_ns (net/core/net_namespace.c:579)
[   92.963071][  T520]  create_new_namespaces (kernel/nsproxy.c:132)
[   92.963202][  T520]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   92.963329][  T520]  ksys_unshare (kernel/fork.c:3243)
[   92.963460][  T520]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   92.963594][  T520]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   92.963723][  T520]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   92.963852][  T520]  ? __ia32_sys_open (fs/open.c:1374)
[   92.963985][  T520]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   92.964114][  T520]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   92.964241][  T520]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   92.964368][  T520]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   92.964499][  T520]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   92.964630][  T520]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   92.964792][  T520] RIP: 0033:0x7f5b73e9cbcb
[   92.964928][  T520] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   92.965384][  T520] RSP: 002b:00007ffc0aa515f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   92.965577][  T520] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f5b73e9cbcb
[   92.965827][  T520] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   92.966022][  T520] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   92.966212][  T520] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc0aa53820
[   92.966402][  T520] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc0aa55886
| [   92.976033][  T520] ------------[ cut here ]------------
| [   92.976168][  T520] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/520
| [   92.976392][  T520] Modules linked in: unix_diag
| [   92.976787][  T520] Tainted: [W]=WARN
[   92.976885][  T520] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   92.977049][  T520] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   92.977217][  T520] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   92.977684][  T520] RSP: 0018:ffa00000010e7a78 EFLAGS: 00010286
[   92.977847][  T520] RAX: 00000000ffffffa6 RBX: ff11000009affe00 RCX: 1ff400000021cf15
[   92.978044][  T520] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009affebc
[   92.978236][  T520] RBP: ff1100000a1ec000 R08: 1fe220000135ffd9 R09: ff11000005b28b80
[   92.978432][  T520] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   92.978628][  T520] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a1ec000
[   92.978822][  T520] FS:  00007f5b73bda840(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   92.979054][  T520] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.979215][  T520] CR2: 00007f6732ce3668 CR3: 0000000004a5a001 CR4: 0000000000771ef0
[   92.979410][  T520] PKRU: 55555554
[   92.979507][  T520] Call Trace:
[   92.979609][  T520]  <TASK>
[   92.979676][  T520]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   92.979807][  T520]  ? notifier_call_chain (kernel/notifier.c:85)
[   92.979940][  T520]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   92.980039][  T520]  register_netdevice (net/core/dev.c:11488)
[   92.980168][  T520]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   92.980328][  T520]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   92.980463][  T520]  register_netdev (net/core/dev.c:11552)
[   92.980596][  T520]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[   92.980727][  T520]  ops_init (net/core/net_namespace.c:137)
[   92.980826][  T520]  setup_net (net/core/net_namespace.c:446)
[   92.980930][  T520]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[   92.981062][  T520]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[   92.981191][  T520]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[   92.981322][  T520]  copy_net_ns (net/core/net_namespace.c:579)
[   92.981454][  T520]  create_new_namespaces (kernel/nsproxy.c:132)
[   92.981592][  T520]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[   92.981722][  T520]  ksys_unshare (kernel/fork.c:3243)
[   92.981850][  T520]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   92.981984][  T520]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[   92.982114][  T520]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[   92.982245][  T520]  ? __ia32_sys_open (fs/open.c:1374)
[   92.982377][  T520]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[   92.982509][  T520]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   92.982644][  T520]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   92.982773][  T520]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   92.982903][  T520]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   92.983040][  T520]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   92.983200][  T520] RIP: 0033:0x7f5b73e9cbcb
[   92.983334][  T520] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   92.983803][  T520] RSP: 002b:00007ffc0aa515f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[   92.984008][  T520] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f5b73e9cbcb
[   92.984199][  T520] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[   92.984391][  T520] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[   92.984591][  T520] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc0aa53820
[   92.984784][  T520] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc0aa55886
| [   93.008538][  T521] ------------[ cut here ]------------
| [   93.008720][  T521] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/521
| [   93.008999][  T521] Modules linked in: unix_diag
| [   93.009490][  T521] Tainted: [W]=WARN
[   93.010341][  T521] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   93.010636][  T521] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   93.010908][  T521] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   93.011475][  T521] RSP: 0018:ffa0000001097020 EFLAGS: 00010286
[   93.011733][  T521] RAX: 00000000ffffffa6 RBX: ff1100000e139c40 RCX: 1ff4000000212dca
[   93.011979][  T521] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e139cfc
[   93.012216][  T521] RBP: ff11000008b39000 R08: 1fe2200001c273a1 R09: ff1100000ea92e58
[   93.012468][  T521] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[   93.012713][  T521] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[   93.012963][  T521] FS:  00007fe32eca8840(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   93.013236][  T521] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   93.013449][  T521] CR2: 0000000031b7a988 CR3: 000000000f231001 CR4: 0000000000771ef0
[   93.013699][  T521] PKRU: 55555554
[   93.013841][  T521] Call Trace:
[   93.013993][  T521]  <TASK>
[   93.014111][  T521]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   93.014289][  T521]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   93.014436][  T521]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   93.014624][  T521]  __dev_notify_flags (net/core/dev.c:9787)
[   93.014804][  T521]  ? netif_change_name (net/core/dev.c:1495)
[   93.014988][  T521]  ? __dev_change_flags (net/core/dev.c:9752)
[   93.015166][  T521]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   93.015344][  T521]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   93.015526][  T521]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[   93.015716][  T521]  netif_change_flags (net/core/dev.c:9820)
[   93.015894][  T521]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   93.016080][  T521]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[   93.016260][  T521]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[   93.016439][  T521]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   93.016665][  T521]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   93.016842][  T521]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   93.017028][  T521]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   93.017208][  T521]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   93.017385][  T521]  ? __kernel_text_address (kernel/extable.c:79)
[   93.017565][  T521]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   93.017755][  T521]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   93.017942][  T521]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   93.018119][  T521]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   93.018297][  T521]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   93.018479][  T521]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   93.018664][  T521]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   93.018840][  T521]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   93.019026][  T521]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[   93.019208][  T521]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   93.019386][  T521]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[   93.019568][  T521]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   93.019760][  T521]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[   93.019947][  T521]  rtnl_newlink (net/core/rtnetlink.c:4150)
[   93.020127][  T521]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   93.020300][  T521]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   93.020486][  T521]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   93.020678][  T521]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   93.020855][  T521]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   93.021045][  T521]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   93.021225][  T521]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   93.021403][  T521]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   93.021599][  T521]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   93.021778][  T521]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[   93.021963][  T521]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[   93.022143][  T521]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   93.022319][  T521]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   93.022502][  T521]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   93.022694][  T521]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   93.022871][  T521]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   93.023062][  T521]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   93.023241][  T521]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   93.023422][  T521]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   93.023618][  T521]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   93.023794][  T521]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   93.023980][  T521]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   93.024160][  T521]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   93.024335][  T521]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   93.024521][  T521]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   93.024715][  T521]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   93.024896][  T521]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   93.025083][  T521]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   93.025263][  T521]  ? copy_msghdr_from_user (net/socket.c:2635)
[   93.025443][  T521]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[   93.025663][  T521]  ? move_addr_to_kernel (net/socket.c:258)
[   93.025842][  T521]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   93.026028][  T521]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   93.026210][  T521]  ___sys_sendmsg (net/socket.c:2752)
[   93.026386][  T521]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   93.026611][  T521]  ? copy_msghdr_from_user (net/socket.c:2603)
[   93.026800][  T521]  __sys_sendmsg (net/socket.c:2784)
[   93.026989][  T521]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   93.027163][  T521]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   93.027375][  T521]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   93.027561][  T521]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   93.027754][  T521]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   93.027939][  T521]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   93.028116][  T521]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   93.028294][  T521]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   93.028511][  T521] RIP: 0033:0x7fe32eee208e
[   93.028706][  T521] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   93.029220][  T521] RSP: 002b:00007ffdbacdb5d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   93.029467][  T521] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe32eee208e
[   93.029721][  T521] RDX: 0000000000000000 RSI: 00007ffdbacdb680 RDI: 0000000000000005
[   93.029966][  T521] RBP: 00007ffdbacdb5e0 R08: 0000000000000000 R09: 0000000000000000
[   93.030205][  T521] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d6a6
[   93.030449][  T521] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdbacdbd50
| [   98.256770][   T68] ------------[ cut here ]------------
| [   98.256944][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   98.257180][   T68] Modules linked in: unix_diag
| [   98.257591][   T68] Tainted: [W]=WARN
[   98.257681][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   98.257828][   T68] Workqueue: netns cleanup_net
[   98.257960][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   98.258114][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   98.258530][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   98.258776][   T68] RAX: 00000000ffffffa6 RBX: ff1100000f6e6e40 RCX: 1ff4000000092eed
[   98.258961][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000f6e6efc
[   98.259133][   T68] RBP: ff1100000a1ec000 R08: 1fe2200001edcde1 R09: ff11000008e42ed0
[   98.259310][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   98.259492][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   98.259686][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   98.259888][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.260041][   T68] CR2: 00007fc7167edf98 CR3: 000000000a378006 CR4: 0000000000771ef0
[   98.260217][   T68] PKRU: 55555554
[   98.260304][   T68] Call Trace:
[   98.260392][   T68]  <TASK>
[   98.260460][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   98.260618][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   98.260764][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   98.260893][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   98.261018][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   98.261134][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   98.261253][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   98.261373][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   98.261494][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   98.261617][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   98.261738][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   98.261854][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   98.261974][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   98.262093][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   98.262210][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   98.262329][   T68]  process_one_work (kernel/workqueue.c:3314)
[   98.262451][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   98.262567][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   98.262694][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   98.262812][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   98.262927][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   98.263055][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   98.263169][   T68]  kthread (kernel/kthread.c:436)
[   98.263259][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   98.263406][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   98.263524][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   98.263652][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   98.263799][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   98.263920][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   98.264043][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   98.266221][   T68] ------------[ cut here ]------------
| [   98.266337][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/68
| [   98.266570][   T68] Modules linked in: unix_diag
| [   98.267061][   T68] Tainted: [W]=WARN
[   98.267148][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   98.267294][   T68] Workqueue: netns cleanup_net
[   98.267476][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   98.267646][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   98.268063][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   98.268211][   T68] RAX: 00000000ffffffa6 RBX: ff1100000e139380 RCX: 1ff4000000092eed
[   98.268384][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000e13943c
[   98.268559][   T68] RBP: ff11000009024000 R08: 1fe2200001c27289 R09: ff11000008e42ed0
[   98.268734][   T68] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   98.268921][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   98.269100][   T68] FS:  0000000000000000(0000) GS:ff110000db747000(0000) knlGS:0000000000000000
[   98.269305][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.269451][   T68] CR2: 00007fc7167edf98 CR3: 000000000a378006 CR4: 0000000000771ef0
[   98.269635][   T68] PKRU: 55555554
[   98.269721][   T68] Call Trace:
[   98.269812][   T68]  <TASK>
[   98.269873][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   98.270034][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   98.270181][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   98.270299][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   98.270421][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   98.270538][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   98.270663][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   98.270783][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   98.270903][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   98.271031][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   98.271149][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   98.271268][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   98.271383][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   98.271502][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   98.271622][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   98.271738][   T68]  process_one_work (kernel/workqueue.c:3314)
[   98.271862][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   98.271979][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   98.272102][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   98.272218][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   98.272332][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   98.272451][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   98.272565][   T68]  kthread (kernel/kthread.c:436)
[   98.272657][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   98.272802][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   98.272918][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   98.273039][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   98.273181][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   98.273297][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   98.273418][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   98.275544][   T68] ------------[ cut here ]------------
| [   98.276075][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   98.276307][   T68] Modules linked in: unix_diag
| [   98.276749][   T68] Tainted: [W]=WARN
[   98.276837][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   98.276986][   T68] Workqueue: netns cleanup_net
[   98.277106][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   98.277257][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   98.277735][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   98.277881][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c836e40 RCX: 1ff4000000092eed
[   98.278057][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c836efc
[   98.278229][   T68] RBP: ff11000009691000 R08: 1fe2200001906de1 R09: ff11000008e42ed0
[   98.278401][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   98.278576][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   98.278796][   T68] FS:  0000000000000000(0000) GS:ff110000db6c7000(0000) knlGS:0000000000000000
[   98.279003][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.279150][   T68] CR2: 000055e68575fd5c CR3: 00000000097f9006 CR4: 0000000000771ef0
[   98.279326][   T68] PKRU: 55555554
[   98.279416][   T68] Call Trace:
[   98.279503][   T68]  <TASK>
[   98.279564][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   98.279759][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   98.279903][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   98.280024][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   98.280140][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   98.280256][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   98.280371][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   98.280492][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   98.280657][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   98.280774][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   98.280895][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   98.281015][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   98.281130][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   98.281246][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   98.281363][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   98.281483][   T68]  process_one_work (kernel/workqueue.c:3314)
[   98.281647][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   98.281765][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   98.281887][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   98.282006][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   98.282120][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   98.282237][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   98.282352][   T68]  kthread (kernel/kthread.c:436)
[   98.282443][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   98.282630][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   98.282746][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   98.282867][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   98.283019][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   98.283135][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   98.283251][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   98.286021][   T68] ------------[ cut here ]------------
| [   98.286152][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   98.286377][   T68] Modules linked in: unix_diag
| [   98.286770][   T68] Tainted: [W]=WARN
[   98.286860][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   98.287013][   T68] Workqueue: netns cleanup_net
[   98.287133][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   98.287282][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   98.287705][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   98.287851][   T68] RAX: 00000000ffffffa6 RBX: ff1100000bebeac0 RCX: 1ff4000000092eed
[   98.288030][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bebeb7c
[   98.288201][   T68] RBP: ff110000090e9000 R08: 1fe22000017d7d71 R09: ff11000008e42ed0
[   98.288372][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   98.288546][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   98.288726][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   98.288927][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.289078][   T68] CR2: 0000563f4726ad5c CR3: 000000000989f001 CR4: 0000000000771ef0
[   98.289251][   T68] PKRU: 55555554
[   98.289339][   T68] Call Trace:
[   98.289428][   T68]  <TASK>
[   98.289490][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   98.289645][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   98.289794][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   98.289913][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   98.290031][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   98.290147][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   98.290263][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   98.290380][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   98.290500][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   98.290620][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   98.290740][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   98.290858][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   98.290977][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   98.291095][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   98.291210][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   98.291327][   T68]  process_one_work (kernel/workqueue.c:3314)
[   98.291450][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   98.291568][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   98.291697][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   98.291815][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   98.291941][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   98.292059][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   98.292174][   T68]  kthread (kernel/kthread.c:436)
[   98.292260][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   98.292402][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   98.292521][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   98.292642][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   98.292786][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   98.292902][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   98.293025][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   98.294942][   T68] ------------[ cut here ]------------
| [   98.295059][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   98.295285][   T68] Modules linked in: unix_diag
| [   98.295672][   T68] Tainted: [W]=WARN
[   98.295758][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   98.295901][   T68] Workqueue: netns cleanup_net
[   98.296027][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   98.296176][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   98.296588][   T68] RSP: 0018:ffa0000000497938 EFLAGS: 00010286
[   98.296732][   T68] RAX: 00000000ffffffa6 RBX: ff1100000bebf8c0 RCX: 1ff4000000092eed
[   98.296902][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bebf97c
[   98.297080][   T68] RBP: ff11000007c89000 R08: 1fe22000017d7f31 R09: ff11000008e42ed0
[   98.297257][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   98.297429][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   98.297605][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   98.297803][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.297955][   T68] CR2: 0000563f4726ad5c CR3: 000000000989f001 CR4: 0000000000771ef0
[   98.298126][   T68] PKRU: 55555554
[   98.298210][   T68] Call Trace:
[   98.298295][   T68]  <TASK>
[   98.298353][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   98.298501][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   98.298646][   T68]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   98.298761][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   98.298876][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   98.298998][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   98.299113][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   98.299227][   T68]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   98.299345][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   98.299461][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   98.299588][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   98.299703][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   98.299815][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   98.299939][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   98.300056][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   98.300170][   T68]  process_one_work (kernel/workqueue.c:3314)
[   98.300289][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   98.300401][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   98.300524][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   98.300647][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   98.300760][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   98.300874][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   98.300997][   T68]  kthread (kernel/kthread.c:436)
[   98.301086][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   98.301227][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   98.301340][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   98.301459][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   98.301608][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   98.301723][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   98.301838][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   98.313796][   T68] ------------[ cut here ]------------
| [   98.313922][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/68
| [   98.314168][   T68] Modules linked in: unix_diag
| [   98.314563][   T68] Tainted: [W]=WARN
[   98.314665][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   98.314814][   T68] Workqueue: netns cleanup_net
[   98.314944][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   98.315098][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   98.315527][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   98.315682][   T68] RAX: 00000000ffffffa6 RBX: ff1100000bebe580 RCX: 1ff4000000092eaf
[   98.315860][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000bebe63c
[   98.316049][   T68] RBP: ff11000008b39000 R08: 1fe22000017d7cc9 R09: ff11000008e42ed0
[   98.316230][   T68] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   98.316408][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e0
[   98.316597][   T68] FS:  0000000000000000(0000) GS:ff110000db847000(0000) knlGS:0000000000000000
[   98.316808][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.316968][   T68] CR2: 00007f6732cc9f98 CR3: 000000004d34d002 CR4: 0000000000771ef0
[   98.317148][   T68] PKRU: 55555554
[   98.317238][   T68] Call Trace:
[   98.317327][   T68]  <TASK>
[   98.317389][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   98.317512][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   98.317609][   T68]  netif_close_many (net/core/dev.c:1804)
[   98.317730][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   98.317852][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   98.317975][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   98.318094][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   98.318214][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   98.318366][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   98.318518][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   98.318641][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   98.318759][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   98.318882][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   98.319037][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   98.319159][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   98.319280][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   98.319401][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   98.319523][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   98.319700][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   98.319822][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   98.319946][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   98.320069][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   98.320188][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   98.320308][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   98.320431][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   98.320550][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   98.320722][   T68]  process_one_work (kernel/workqueue.c:3314)
[   98.320898][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   98.321030][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   98.321153][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   98.321274][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   98.321392][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   98.321516][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   98.321684][   T68]  kthread (kernel/kthread.c:436)
[   98.321774][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   98.321923][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   98.322049][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   98.322169][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   98.322318][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   98.322441][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   98.322561][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   98.324783][   T68] ------------[ cut here ]------------
| [   98.324946][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [   98.325228][   T68] Modules linked in: unix_diag
| [   98.325778][   T68] Tainted: [W]=WARN
[   98.325907][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   98.326106][   T68] Workqueue: netns cleanup_net
[   98.326278][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   98.326483][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   98.327010][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   98.327206][   T68] RAX: 00000000ffffffa6 RBX: ff11000009487a80 RCX: 1ff4000000092ed5
[   98.327433][   T68] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000009487b3c
[   98.327664][   T68] RBP: ff11000008b39000 R08: 1fe2200001290f69 R09: ff11000008e42ed0
[   98.327888][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   98.328122][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   98.328367][   T68] FS:  0000000000000000(0000) GS:ff110000db7c7000(0000) knlGS:0000000000000000
[   98.328632][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.328822][   T68] CR2: 00007fd8dfd76574 CR3: 000000004d34d002 CR4: 0000000000771ef0
[   98.329050][   T68] PKRU: 55555554
[   98.329182][   T68] Call Trace:
[   98.329317][   T68]  <TASK>
[   98.329425][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   98.329640][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   98.329834][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   98.330014][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   98.330189][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   98.330360][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   98.330531][   T68]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   98.330785][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   98.331071][   T68]  ? netns_install (./include/linux/ns_common.h:26)
[   98.331315][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   98.331511][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   98.331684][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   98.331851][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   98.332022][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   98.332185][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   98.332345][   T68]  process_one_work (kernel/workqueue.c:3314)
[   98.332515][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   98.332687][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   98.332850][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   98.333022][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   98.333181][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   98.333345][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   98.333513][   T68]  kthread (kernel/kthread.c:436)
[   98.333656][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   98.333843][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   98.334010][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   98.334174][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   98.334361][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   98.334532][   T68]  ? kthread_affine_node (kernel/kthread.c:378)


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:sit_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:default_device_exit_batch
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:ops_undo_list:cleanup_net:process_one_work
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:netif_change_flags:rtnl_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:ip6_tnl_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:vti6_init_net
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:default_device_exit_batch:ops_undo_list:cleanup_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:__ip_tunnel_create:ip_tunnel_init_net